21431968

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{39397}}^1$

素因数の和:39424

約数の個数: 24

約数和(自身を含む): 44677332

約数和(自身を除く): 23245364

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 544, 39397, 78794, 157588, 315176, 630352, 669749, 1260704, 1339498, 2678996, 5357992, 10715984, 21431968]

約数ペア:

[(1, 21431968), (2, 10715984), (4, 5357992), (8, 2678996), (16, 1339498), (17, 1260704), (32, 669749), (34, 630352), (68, 315176), (136, 157588), (272, 78794), (544, 39397)]