216007775

素因数分解:

$5^2\times {\mathrm{541}}^1\times {\mathrm{15971}}^1$

素因数の和:16522

約数の個数: 12

約数和(自身を含む): 268361544

約数和(自身を除く): 52353769

約数列:

[1, 5, 25, 541, 2705, 13525, 15971, 79855, 399275, 8640311, 43201555, 216007775]

約数ペア:

[(1, 216007775), (5, 43201555), (25, 8640311), (541, 399275), (2705, 79855), (13525, 15971)]