21712856

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1801}}^1$

素因数の和:1955

約数の個数: 32

約数和(自身を含む): 44761680

約数和(自身を除く): 23048824

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 137, 274, 548, 1096, 1507, 1801, 3014, 3602, 6028, 7204, 12056, 14408, 19811, 39622, 79244, 158488, 246737, 493474, 986948, 1973896, 2714107, 5428214, 10856428, 21712856]

約数ペア:

[(1, 21712856), (2, 10856428), (4, 5428214), (8, 2714107), (11, 1973896), (22, 986948), (44, 493474), (88, 246737), (137, 158488), (274, 79244), (548, 39622), (1096, 19811), (1507, 14408), (1801, 12056), (3014, 7204), (3602, 6028)]