20967728

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{31963}}^1$

素因数の和:32012

約数の個数: 20

約数和(自身を含む): 41617128

約数和(自身を除く): 20649400

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31963, 63926, 127852, 255704, 511408, 1310483, 2620966, 5241932, 10483864, 20967728]

約数ペア:

[(1, 20967728), (2, 10483864), (4, 5241932), (8, 2620966), (16, 1310483), (41, 511408), (82, 255704), (164, 127852), (328, 63926), (656, 31963)]