21731850

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{6899}}^1$

素因数の和:6924

約数の個数: 72

約数和(自身を含む): 66736800

約数和(自身を除く): 45004950

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 1050, 1575, 3150, 6899, 13798, 20697, 34495, 41394, 48293, 62091, 68990, 96586, 103485, 124182, 144879, 172475, 206970, 241465, 289758, 310455, 344950, 434637, 482930, 517425, 620910, 724395, 869274, 1034850, 1207325, 1448790, 1552275, 2173185, 2414650, 3104550, 3621975, 4346370, 7243950, 10865925, 21731850]

約数ペア:

[(1, 21731850), (2, 10865925), (3, 7243950), (5, 4346370), (6, 3621975), (7, 3104550), (9, 2414650), (10, 2173185), (14, 1552275), (15, 1448790), (18, 1207325), (21, 1034850), (25, 869274), (30, 724395), (35, 620910), (42, 517425), (45, 482930), (50, 434637), (63, 344950), (70, 310455), (75, 289758), (90, 241465), (105, 206970), (126, 172475), (150, 144879), (175, 124182), (210, 103485), (225, 96586), (315, 68990), (350, 62091), (450, 48293), (525, 41394), (630, 34495), (1050, 20697), (1575, 13798), (3150, 6899)]