20019388

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{1093}}^1$

素因数の和:1357

約数の個数: 24

約数和(自身を含む): 37064720

約数和(自身を除く): 17045332

約数列:

[1, 2, 4, 19, 38, 76, 241, 482, 964, 1093, 2186, 4372, 4579, 9158, 18316, 20767, 41534, 83068, 263413, 526826, 1053652, 5004847, 10009694, 20019388]

約数ペア:

[(1, 20019388), (2, 10009694), (4, 5004847), (19, 1053652), (38, 526826), (76, 263413), (241, 83068), (482, 41534), (964, 20767), (1093, 18316), (2186, 9158), (4372, 4579)]