21190952

素因数分解:

$2^3\times {\mathrm{571}}^1\times {\mathrm{4639}}^1$

素因数の和:5216

約数の個数: 16

約数和(自身を含む): 39811200

約数和(自身を除く): 18620248

約数列:

[1, 2, 4, 8, 571, 1142, 2284, 4568, 4639, 9278, 18556, 37112, 2648869, 5297738, 10595476, 21190952]

約数ペア:

[(1, 21190952), (2, 10595476), (4, 5297738), (8, 2648869), (571, 37112), (1142, 18556), (2284, 9278), (4568, 4639)]