21815408

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{59281}}^1$

素因数の和:59312

約数の個数: 20

約数和(自身を含む): 44105808

約数和(自身を除く): 22290400

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 59281, 118562, 237124, 474248, 948496, 1363463, 2726926, 5453852, 10907704, 21815408]

約数ペア:

[(1, 21815408), (2, 10907704), (4, 5453852), (8, 2726926), (16, 1363463), (23, 948496), (46, 474248), (92, 237124), (184, 118562), (368, 59281)]