20263984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97423}}^1$

素因数の和:97444

約数の個数: 20

約数和(自身を含む): 42282016

約数和(自身を除く): 22018032

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 97423, 194846, 389692, 779384, 1266499, 1558768, 2532998, 5065996, 10131992, 20263984]

約数ペア:

[(1, 20263984), (2, 10131992), (4, 5065996), (8, 2532998), (13, 1558768), (16, 1266499), (26, 779384), (52, 389692), (104, 194846), (208, 97423)]