21011393

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:632

約数の個数: 16

約数和(自身を含む): 23520000

約数和(自身を除く): 2508607

約数列:

[1, 13, 41, 79, 499, 533, 1027, 3239, 6487, 20459, 39421, 42107, 265967, 512473, 1616261, 21011393]

約数ペア:

[(1, 21011393), (13, 1616261), (41, 512473), (79, 265967), (499, 42107), (533, 39421), (1027, 20459), (3239, 6487)]