21204810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21419}}^1$

素因数の和:21443

約数の個数: 48

約数和(自身を含む): 60147360

約数和(自身を除く): 38942550

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 21419, 42838, 64257, 107095, 128514, 192771, 214190, 235609, 321285, 385542, 471218, 642570, 706827, 963855, 1178045, 1413654, 1927710, 2120481, 2356090, 3534135, 4240962, 7068270, 10602405, 21204810]

約数ペア:

[(1, 21204810), (2, 10602405), (3, 7068270), (5, 4240962), (6, 3534135), (9, 2356090), (10, 2120481), (11, 1927710), (15, 1413654), (18, 1178045), (22, 963855), (30, 706827), (33, 642570), (45, 471218), (55, 385542), (66, 321285), (90, 235609), (99, 214190), (110, 192771), (165, 128514), (198, 107095), (330, 64257), (495, 42838), (990, 21419)]