20871930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{13127}}^1$

素因数の和:13190

約数の個数: 32

約数和(自身を含む): 51041664

約数和(自身を除く): 30169734

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 106, 159, 265, 318, 530, 795, 1590, 13127, 26254, 39381, 65635, 78762, 131270, 196905, 393810, 695731, 1391462, 2087193, 3478655, 4174386, 6957310, 10435965, 20871930]

約数ペア:

[(1, 20871930), (2, 10435965), (3, 6957310), (5, 4174386), (6, 3478655), (10, 2087193), (15, 1391462), (30, 695731), (53, 393810), (106, 196905), (159, 131270), (265, 78762), (318, 65635), (530, 39381), (795, 26254), (1590, 13127)]