21286304

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{51169}}^1$

素因数の和:51192

約数の個数: 24

約数和(自身を含む): 45131940

約数和(自身を除く): 23845636

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 51169, 102338, 204676, 409352, 665197, 818704, 1330394, 1637408, 2660788, 5321576, 10643152, 21286304]

約数ペア:

[(1, 21286304), (2, 10643152), (4, 5321576), (8, 2660788), (13, 1637408), (16, 1330394), (26, 818704), (32, 665197), (52, 409352), (104, 204676), (208, 102338), (416, 51169)]