21207804930

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{10979}}^1$

素因数の和:11145

約数の個数: 144

約数和(自身を含む): 60183751680

約数和(自身を除く): 38975946750

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 127, 130, 169, 195, 234, 254, 338, 381, 390, 507, 585, 635, 762, 845, 1014, 1143, 1170, 1270, 1521, 1651, 1690, 1905, 2286, 2535, 3042, 3302, 3810, 4953, 5070, 5715, 7605, 8255, 9906, 10979, 11430, 14859, 15210, 16510, 21463, 21958, 24765, 29718, 32937, 42926, 49530, 54895, 64389, 65874, 74295, 98811, 107315, 109790, 128778, 142727, 148590, 164685, 193167, 197622, 214630, 285454, 321945, 329370, 386334, 428181, 494055, 643890, 713635, 856362, 965835, 988110, 1284543, 1394333, 1427270, 1855451, 1931670, 2140905, 2569086, 2788666, 3710902, 4182999, 4281810, 5566353, 6422715, 6971665, 8365998, 9277255, 11132706, 12548997, 12845430, 13943330, 16699059, 18126329, 18554510, 20914995, 25097994, 27831765, 33398118, 36252658, 41829990, 54378987, 55663530, 62744985, 83495295, 90631645, 108757974, 125489970, 163136961, 166990590, 181263290, 235642277, 271894935, 326273922, 471284554, 543789870, 706926831, 815684805, 1178211385, 1413853662, 1631369610, 2120780493, 2356422770, 3534634155, 4241560986, 7069268310, 10603902465, 21207804930]

約数ペア:

[(1, 21207804930), (2, 10603902465), (3, 7069268310), (5, 4241560986), (6, 3534634155), (9, 2356422770), (10, 2120780493), (13, 1631369610), (15, 1413853662), (18, 1178211385), (26, 815684805), (30, 706926831), (39, 543789870), (45, 471284554), (65, 326273922), (78, 271894935), (90, 235642277), (117, 181263290), (127, 166990590), (130, 163136961), (169, 125489970), (195, 108757974), (234, 90631645), (254, 83495295), (338, 62744985), (381, 55663530), (390, 54378987), (507, 41829990), (585, 36252658), (635, 33398118), (762, 27831765), (845, 25097994), (1014, 20914995), (1143, 18554510), (1170, 18126329), (1270, 16699059), (1521, 13943330), (1651, 12845430), (1690, 12548997), (1905, 11132706), (2286, 9277255), (2535, 8365998), (3042, 6971665), (3302, 6422715), (3810, 5566353), (4953, 4281810), (5070, 4182999), (5715, 3710902), (7605, 2788666), (8255, 2569086), (9906, 2140905), (10979, 1931670), (11430, 1855451), (14859, 1427270), (15210, 1394333), (16510, 1284543), (21463, 988110), (21958, 965835), (24765, 856362), (29718, 713635), (32937, 643890), (42926, 494055), (49530, 428181), (54895, 386334), (64389, 329370), (65874, 321945), (74295, 285454), (98811, 214630), (107315, 197622), (109790, 193167), (128778, 164685), (142727, 148590)]