21226270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2437}}^1$

素因数の和:2524

約数の個数: 32

約数和(自身を含む): 41777568

約数和(自身を除く): 20551298

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 335, 670, 871, 1742, 2437, 4355, 4874, 8710, 12185, 24370, 31681, 63362, 158405, 163279, 316810, 326558, 816395, 1632790, 2122627, 4245254, 10613135, 21226270]

約数ペア:

[(1, 21226270), (2, 10613135), (5, 4245254), (10, 2122627), (13, 1632790), (26, 816395), (65, 326558), (67, 316810), (130, 163279), (134, 158405), (335, 63362), (670, 31681), (871, 24370), (1742, 12185), (2437, 8710), (4355, 4874)]