21642890

素因数分解:

$2^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 39890880

約数和(自身を除く): 18247990

約数列:

[1, 2, 5, 10, 107, 113, 179, 214, 226, 358, 535, 565, 895, 1070, 1130, 1790, 12091, 19153, 20227, 24182, 38306, 40454, 60455, 95765, 101135, 120910, 191530, 202270, 2164289, 4328578, 10821445, 21642890]

約数ペア:

[(1, 21642890), (2, 10821445), (5, 4328578), (10, 2164289), (107, 202270), (113, 191530), (179, 120910), (214, 101135), (226, 95765), (358, 60455), (535, 40454), (565, 38306), (895, 24182), (1070, 20227), (1130, 19153), (1790, 12091)]