21409252

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{263}}^1\times {\mathrm{433}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 38497536

約数和(自身を除く): 17088284

約数列:

[1, 2, 4, 47, 94, 188, 263, 433, 526, 866, 1052, 1732, 12361, 20351, 24722, 40702, 49444, 81404, 113879, 227758, 455516, 5352313, 10704626, 21409252]

約数ペア:

[(1, 21409252), (2, 10704626), (4, 5352313), (47, 455516), (94, 227758), (188, 113879), (263, 81404), (433, 49444), (526, 40702), (866, 24722), (1052, 20351), (1732, 12361)]