20857512

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{66851}}^1$

素因数の和:66873

約数の個数: 32

約数和(自身を含む): 56155680

約数和(自身を除く): 35298168

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 66851, 133702, 200553, 267404, 401106, 534808, 802212, 869063, 1604424, 1738126, 2607189, 3476252, 5214378, 6952504, 10428756, 20857512]

約数ペア:

[(1, 20857512), (2, 10428756), (3, 6952504), (4, 5214378), (6, 3476252), (8, 2607189), (12, 1738126), (13, 1604424), (24, 869063), (26, 802212), (39, 534808), (52, 401106), (78, 267404), (104, 200553), (156, 133702), (312, 66851)]