20681799229

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1\times {\mathrm{13259}}^1$

素因数の和:13621

約数の個数: 32

約数和(自身を含む): 25965838080

約数和(自身を除く): 5284038851

約数列:

[1, 7, 13, 61, 91, 281, 427, 793, 1967, 3653, 5551, 13259, 17141, 25571, 92813, 119987, 172367, 222833, 808799, 1206569, 1559831, 3725779, 5661593, 10514387, 26080453, 48435127, 73600709, 227272519, 339045889, 1590907633, 2954542747, 20681799229]

約数ペア:

[(1, 20681799229), (7, 2954542747), (13, 1590907633), (61, 339045889), (91, 227272519), (281, 73600709), (427, 48435127), (793, 26080453), (1967, 10514387), (3653, 5661593), (5551, 3725779), (13259, 1559831), (17141, 1206569), (25571, 808799), (92813, 222833), (119987, 172367)]