21798766

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{31963}}^1$

素因数の和:32007

約数の個数: 16

約数和(自身を含む): 36822528

約数和(自身を除く): 15023762

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 31963, 63926, 351593, 703186, 990853, 1981706, 10899383, 21798766]

約数ペア:

[(1, 21798766), (2, 10899383), (11, 1981706), (22, 990853), (31, 703186), (62, 351593), (341, 63926), (682, 31963)]