21861450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:169

約数の個数: 144

約数和(自身を含む): 65605176

約数和(自身を除く): 43743726

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 37, 39, 45, 50, 65, 74, 75, 78, 90, 101, 111, 117, 130, 150, 185, 195, 202, 222, 225, 234, 303, 325, 333, 370, 390, 450, 481, 505, 555, 585, 606, 650, 666, 909, 925, 962, 975, 1010, 1110, 1170, 1313, 1443, 1515, 1665, 1818, 1850, 1950, 2405, 2525, 2626, 2775, 2886, 2925, 3030, 3330, 3737, 3939, 4329, 4545, 4810, 5050, 5550, 5850, 6565, 7215, 7474, 7575, 7878, 8325, 8658, 9090, 11211, 11817, 12025, 13130, 14430, 15150, 16650, 18685, 19695, 21645, 22422, 22725, 23634, 24050, 32825, 33633, 36075, 37370, 39390, 43290, 45450, 48581, 56055, 59085, 65650, 67266, 72150, 93425, 97162, 98475, 108225, 112110, 118170, 145743, 168165, 186850, 196950, 216450, 242905, 280275, 291486, 295425, 336330, 437229, 485810, 560550, 590850, 728715, 840825, 874458, 1214525, 1457430, 1681650, 2186145, 2429050, 3643575, 4372290, 7287150, 10930725, 21861450]

約数ペア:

[(1, 21861450), (2, 10930725), (3, 7287150), (5, 4372290), (6, 3643575), (9, 2429050), (10, 2186145), (13, 1681650), (15, 1457430), (18, 1214525), (25, 874458), (26, 840825), (30, 728715), (37, 590850), (39, 560550), (45, 485810), (50, 437229), (65, 336330), (74, 295425), (75, 291486), (78, 280275), (90, 242905), (101, 216450), (111, 196950), (117, 186850), (130, 168165), (150, 145743), (185, 118170), (195, 112110), (202, 108225), (222, 98475), (225, 97162), (234, 93425), (303, 72150), (325, 67266), (333, 65650), (370, 59085), (390, 56055), (450, 48581), (481, 45450), (505, 43290), (555, 39390), (585, 37370), (606, 36075), (650, 33633), (666, 32825), (909, 24050), (925, 23634), (962, 22725), (975, 22422), (1010, 21645), (1110, 19695), (1170, 18685), (1313, 16650), (1443, 15150), (1515, 14430), (1665, 13130), (1818, 12025), (1850, 11817), (1950, 11211), (2405, 9090), (2525, 8658), (2626, 8325), (2775, 7878), (2886, 7575), (2925, 7474), (3030, 7215), (3330, 6565), (3737, 5850), (3939, 5550), (4329, 5050), (4545, 4810)]