52720213

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{643}}^1$

素因数の和:733

約数の個数: 32

約数和(自身を含む): 70108416

約数和(自身を除く): 17388203

約数列:

[1, 7, 13, 17, 53, 91, 119, 221, 371, 643, 689, 901, 1547, 4501, 4823, 6307, 8359, 10931, 11713, 34079, 58513, 76517, 81991, 142103, 238553, 443027, 579343, 994721, 3101189, 4055401, 7531459, 52720213]

約数ペア:

[(1, 52720213), (7, 7531459), (13, 4055401), (17, 3101189), (53, 994721), (91, 579343), (119, 443027), (221, 238553), (371, 142103), (643, 81991), (689, 76517), (901, 58513), (1547, 34079), (4501, 11713), (4823, 10931), (6307, 8359)]