21034851825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{2399}}^1$

素因数の和:2488

約数の個数: 144

約数和(自身を含む): 41472345600

約数和(自身を除く): 20437493775

約数列:

[1, 3, 5, 13, 15, 17, 23, 25, 39, 51, 65, 69, 75, 85, 115, 195, 221, 255, 299, 325, 345, 391, 425, 529, 575, 663, 897, 975, 1105, 1173, 1275, 1495, 1587, 1725, 1955, 2399, 2645, 3315, 4485, 5083, 5525, 5865, 6877, 7197, 7475, 7935, 8993, 9775, 11995, 13225, 15249, 16575, 20631, 22425, 25415, 26979, 29325, 31187, 34385, 35985, 39675, 40783, 44965, 55177, 59975, 76245, 93561, 103155, 116909, 122349, 127075, 134895, 155935, 165531, 171925, 179925, 203915, 224825, 275885, 350727, 381225, 467805, 515775, 530179, 584545, 611745, 674475, 717301, 779675, 827655, 938009, 1019575, 1269071, 1379425, 1590537, 1753635, 2151903, 2339025, 2650895, 2814027, 2922725, 3058725, 3586505, 3807213, 4138275, 4690045, 6345355, 7952685, 8768175, 10759515, 12194117, 13254475, 14070135, 16497923, 17932525, 19036065, 21574207, 23450225, 31726775, 36582351, 39763425, 49493769, 53797575, 60970585, 64722621, 70350675, 82489615, 95180325, 107871035, 182911755, 247468845, 280464691, 304852925, 323613105, 412448075, 539355175, 841394073, 914558775, 1237344225, 1402323455, 1618065525, 4206970365, 7011617275, 21034851825]

約数ペア:

[(1, 21034851825), (3, 7011617275), (5, 4206970365), (13, 1618065525), (15, 1402323455), (17, 1237344225), (23, 914558775), (25, 841394073), (39, 539355175), (51, 412448075), (65, 323613105), (69, 304852925), (75, 280464691), (85, 247468845), (115, 182911755), (195, 107871035), (221, 95180325), (255, 82489615), (299, 70350675), (325, 64722621), (345, 60970585), (391, 53797575), (425, 49493769), (529, 39763425), (575, 36582351), (663, 31726775), (897, 23450225), (975, 21574207), (1105, 19036065), (1173, 17932525), (1275, 16497923), (1495, 14070135), (1587, 13254475), (1725, 12194117), (1955, 10759515), (2399, 8768175), (2645, 7952685), (3315, 6345355), (4485, 4690045), (5083, 4138275), (5525, 3807213), (5865, 3586505), (6877, 3058725), (7197, 2922725), (7475, 2814027), (7935, 2650895), (8993, 2339025), (9775, 2151903), (11995, 1753635), (13225, 1590537), (15249, 1379425), (16575, 1269071), (20631, 1019575), (22425, 938009), (25415, 827655), (26979, 779675), (29325, 717301), (31187, 674475), (34385, 611745), (35985, 584545), (39675, 530179), (40783, 515775), (44965, 467805), (55177, 381225), (59975, 350727), (76245, 275885), (93561, 224825), (103155, 203915), (116909, 179925), (122349, 171925), (127075, 165531), (134895, 155935)]