19897756

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{821}}^1$

素因数の和:981

約数の個数: 24

約数和(自身を含む): 35766864

約数和(自身を除く): 15869108

約数列:

[1, 2, 4, 73, 83, 146, 166, 292, 332, 821, 1642, 3284, 6059, 12118, 24236, 59933, 68143, 119866, 136286, 239732, 272572, 4974439, 9948878, 19897756]

約数ペア:

[(1, 19897756), (2, 9948878), (4, 4974439), (73, 272572), (83, 239732), (146, 136286), (166, 119866), (292, 68143), (332, 59933), (821, 24236), (1642, 12118), (3284, 6059)]