20745848

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{1481}}^1$

素因数の和:1607

約数の個数: 32

約数和(自身を含む): 41614560

約数和(自身を除く): 20868712

約数列:

[1, 2, 4, 8, 17, 34, 68, 103, 136, 206, 412, 824, 1481, 1751, 2962, 3502, 5924, 7004, 11848, 14008, 25177, 50354, 100708, 152543, 201416, 305086, 610172, 1220344, 2593231, 5186462, 10372924, 20745848]

約数ペア:

[(1, 20745848), (2, 10372924), (4, 5186462), (8, 2593231), (17, 1220344), (34, 610172), (68, 305086), (103, 201416), (136, 152543), (206, 100708), (412, 50354), (824, 25177), (1481, 14008), (1751, 11848), (2962, 7004), (3502, 5924)]