21068792

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{233}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 19366408

約数列:

[1, 2, 4, 8, 89, 127, 178, 233, 254, 356, 466, 508, 712, 932, 1016, 1864, 11303, 20737, 22606, 29591, 41474, 45212, 59182, 82948, 90424, 118364, 165896, 236728, 2633599, 5267198, 10534396, 21068792]

約数ペア:

[(1, 21068792), (2, 10534396), (4, 5267198), (8, 2633599), (89, 236728), (127, 165896), (178, 118364), (233, 90424), (254, 82948), (356, 59182), (466, 45212), (508, 41474), (712, 29591), (932, 22606), (1016, 20737), (1864, 11303)]