20130781251

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{821}}^1\times {\mathrm{68683}}^1$

素因数の和:69531

約数の個数: 32

約数和(自身を含む): 32519950848

約数和(自身を除く): 12389169597

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 821, 2463, 5747, 13957, 17241, 41871, 68683, 97699, 206049, 293097, 480781, 1167611, 1442343, 3502833, 8173277, 24519831, 56388743, 169166229, 394721201, 958608631, 1184163603, 2875825893, 6710260417, 20130781251]

約数ペア:

[(1, 20130781251), (3, 6710260417), (7, 2875825893), (17, 1184163603), (21, 958608631), (51, 394721201), (119, 169166229), (357, 56388743), (821, 24519831), (2463, 8173277), (5747, 3502833), (13957, 1442343), (17241, 1167611), (41871, 480781), (68683, 293097), (97699, 206049)]