21028216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{2879}}^1$

素因数の和:2979

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 22517384

約数列:

[1, 2, 4, 8, 11, 22, 44, 83, 88, 166, 332, 664, 913, 1826, 2879, 3652, 5758, 7304, 11516, 23032, 31669, 63338, 126676, 238957, 253352, 477914, 955828, 1911656, 2628527, 5257054, 10514108, 21028216]

約数ペア:

[(1, 21028216), (2, 10514108), (4, 5257054), (8, 2628527), (11, 1911656), (22, 955828), (44, 477914), (83, 253352), (88, 238957), (166, 126676), (332, 63338), (664, 31669), (913, 23032), (1826, 11516), (2879, 7304), (3652, 5758)]