20785012

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{557}}^1$

素因数の和:1071

約数の個数: 24

約数和(自身を含む): 38435040

約数和(自身を除く): 17650028

約数列:

[1, 2, 4, 19, 38, 76, 491, 557, 982, 1114, 1964, 2228, 9329, 10583, 18658, 21166, 37316, 42332, 273487, 546974, 1093948, 5196253, 10392506, 20785012]

約数ペア:

[(1, 20785012), (2, 10392506), (4, 5196253), (19, 1093948), (38, 546974), (76, 273487), (491, 42332), (557, 37316), (982, 21166), (1114, 18658), (1964, 10583), (2228, 9329)]