20486877

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 29736960

約数和(自身を除く): 9250083

約数列:

[1, 3, 31, 43, 47, 93, 109, 129, 141, 327, 1333, 1457, 2021, 3379, 3999, 4371, 4687, 5123, 6063, 10137, 14061, 15369, 62651, 145297, 158813, 187953, 220289, 435891, 476439, 660867, 6828959, 20486877]

約数ペア:

[(1, 20486877), (3, 6828959), (31, 660867), (43, 476439), (47, 435891), (93, 220289), (109, 187953), (129, 158813), (141, 145297), (327, 62651), (1333, 15369), (1457, 14061), (2021, 10137), (3379, 6063), (3999, 5123), (4371, 4687)]