21231317

素因数分解:

${\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{367}}^1$

素因数の和:508

約数の個数: 16

約数和(自身を含む): 23369472

約数和(自身を除く): 2138155

約数列:

[1, 17, 41, 83, 367, 697, 1411, 3403, 6239, 15047, 30461, 57851, 255799, 517837, 1248901, 21231317]

約数ペア:

[(1, 21231317), (17, 1248901), (41, 517837), (83, 255799), (367, 57851), (697, 30461), (1411, 15047), (3403, 6239)]