20968972

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{1109}}^1$

素因数の和:1305

約数の個数: 24

約数和(自身を含む): 38228400

約数和(自身を除く): 17259428

約数列:

[1, 2, 4, 29, 58, 116, 163, 326, 652, 1109, 2218, 4436, 4727, 9454, 18908, 32161, 64322, 128644, 180767, 361534, 723068, 5242243, 10484486, 20968972]

約数ペア:

[(1, 20968972), (2, 10484486), (4, 5242243), (29, 723068), (58, 361534), (116, 180767), (163, 128644), (326, 64322), (652, 32161), (1109, 18908), (2218, 9454), (4436, 4727)]