21065397

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{14243}}^1$

素因数の和:14292

約数の個数: 16

約数和(自身を含む): 30767040

約数和(自身を除く): 9701643

約数列:

[1, 3, 17, 29, 51, 87, 493, 1479, 14243, 42729, 242131, 413047, 726393, 1239141, 7021799, 21065397]

約数ペア:

[(1, 21065397), (3, 7021799), (17, 1239141), (29, 726393), (51, 413047), (87, 242131), (493, 42729), (1479, 14243)]