21526628

素因数分解:

$2^2\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{509}}^1$

素因数の和:719

約数の個数: 24

約数和(自身を含む): 38484600

約数和(自身を除く): 16957972

約数列:

[1, 2, 4, 97, 109, 194, 218, 388, 436, 509, 1018, 2036, 10573, 21146, 42292, 49373, 55481, 98746, 110962, 197492, 221924, 5381657, 10763314, 21526628]

約数ペア:

[(1, 21526628), (2, 10763314), (4, 5381657), (97, 221924), (109, 197492), (194, 110962), (218, 98746), (388, 55481), (436, 49373), (509, 42292), (1018, 21146), (2036, 10573)]