20977845

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{829}}^1$

素因数の和:1085

約数の個数: 32

約数和(自身を含む): 38565120

約数和(自身を除く): 17587275

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 241, 723, 829, 1205, 1687, 2487, 3615, 4145, 5061, 5803, 8435, 12435, 17409, 25305, 29015, 87045, 199789, 599367, 998945, 1398523, 2996835, 4195569, 6992615, 20977845]

約数ペア:

[(1, 20977845), (3, 6992615), (5, 4195569), (7, 2996835), (15, 1398523), (21, 998945), (35, 599367), (105, 199789), (241, 87045), (723, 29015), (829, 25305), (1205, 17409), (1687, 12435), (2487, 8435), (3615, 5803), (4145, 5061)]