201653571

素因数分解:

$3^1\times 7^2\times {\mathrm{521}}^1\times {\mathrm{2633}}^1$

素因数の和:3171

約数の個数: 24

約数和(自身を含む): 313488144

約数和(自身を除く): 111834573

約数列:

[1, 3, 7, 21, 49, 147, 521, 1563, 2633, 3647, 7899, 10941, 18431, 25529, 55293, 76587, 129017, 387051, 1371793, 4115379, 9602551, 28807653, 67217857, 201653571]

約数ペア:

[(1, 201653571), (3, 67217857), (7, 28807653), (21, 9602551), (49, 4115379), (147, 1371793), (521, 387051), (1563, 129017), (2633, 76587), (3647, 55293), (7899, 25529), (10941, 18431)]