21061511

素因数分解:

${\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:346

約数の個数: 16

約数和(自身を含む): 22628160

約数和(自身を除く): 1566649

約数列:

[1, 29, 53, 71, 193, 1537, 2059, 3763, 5597, 10229, 13703, 109127, 296641, 397387, 726259, 21061511]

約数ペア:

[(1, 21061511), (29, 726259), (53, 397387), (71, 296641), (193, 109127), (1537, 13703), (2059, 10229), (3763, 5597)]