21878608

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{12101}}^1$

素因数の和:12222

約数の個数: 20

約数和(自身を含む): 42768468

約数和(自身を除く): 20889860

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 12101, 24202, 48404, 96808, 193616, 1367413, 2734826, 5469652, 10939304, 21878608]

約数ペア:

[(1, 21878608), (2, 10939304), (4, 5469652), (8, 2734826), (16, 1367413), (113, 193616), (226, 96808), (452, 48404), (904, 24202), (1808, 12101)]