21491430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31147}}^1$

素因数の和:31180

約数の個数: 32

約数和(自身を含む): 53823744

約数和(自身を除く): 32332314

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 31147, 62294, 93441, 155735, 186882, 311470, 467205, 716381, 934410, 1432762, 2149143, 3581905, 4298286, 7163810, 10745715, 21491430]

約数ペア:

[(1, 21491430), (2, 10745715), (3, 7163810), (5, 4298286), (6, 3581905), (10, 2149143), (15, 1432762), (23, 934410), (30, 716381), (46, 467205), (69, 311470), (115, 186882), (138, 155735), (230, 93441), (345, 62294), (690, 31147)]