19977932

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{2357}}^1$

素因数の和:2537

約数の個数: 24

約数和(自身を含む): 37897776

約数和(自身を除く): 17919844

約数列:

[1, 2, 4, 13, 26, 52, 163, 326, 652, 2119, 2357, 4238, 4714, 8476, 9428, 30641, 61282, 122564, 384191, 768382, 1536764, 4994483, 9988966, 19977932]

約数ペア:

[(1, 19977932), (2, 9988966), (4, 4994483), (13, 1536764), (26, 768382), (52, 384191), (163, 122564), (326, 61282), (652, 30641), (2119, 9428), (2357, 8476), (4238, 4714)]