20864584

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10559}}^1$

素因数の和:10597

約数の個数: 32

約数和(自身を含む): 44352000

約数和(自身を除く): 23487416

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10559, 21118, 42236, 84472, 137267, 200621, 274534, 401242, 549068, 802484, 1098136, 1604968, 2608073, 5216146, 10432292, 20864584]

約数ペア:

[(1, 20864584), (2, 10432292), (4, 5216146), (8, 2608073), (13, 1604968), (19, 1098136), (26, 802484), (38, 549068), (52, 401242), (76, 274534), (104, 200621), (152, 137267), (247, 84472), (494, 42236), (988, 21118), (1976, 10559)]