21091902

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{2393}}^1$

素因数の和:2524

約数の個数: 32

約数和(自身を含む): 45849888

約数和(自身を除く): 24757986

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 113, 226, 339, 678, 1469, 2393, 2938, 4407, 4786, 7179, 8814, 14358, 31109, 62218, 93327, 186654, 270409, 540818, 811227, 1622454, 3515317, 7030634, 10545951, 21091902]

約数ペア:

[(1, 21091902), (2, 10545951), (3, 7030634), (6, 3515317), (13, 1622454), (26, 811227), (39, 540818), (78, 270409), (113, 186654), (226, 93327), (339, 62218), (678, 31109), (1469, 14358), (2393, 8814), (2938, 7179), (4407, 4786)]