221377961

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 274606848

約数和(自身を除く): 53228887

約数列:

[1, 7, 17, 101, 113, 119, 163, 707, 791, 1141, 1717, 1921, 2771, 11413, 12019, 13447, 16463, 18419, 19397, 79891, 115241, 128933, 194021, 279871, 313123, 1358147, 1860319, 1959097, 2191861, 13022233, 31625423, 221377961]

約数ペア:

[(1, 221377961), (7, 31625423), (17, 13022233), (101, 2191861), (113, 1959097), (119, 1860319), (163, 1358147), (707, 313123), (791, 279871), (1141, 194021), (1717, 128933), (1921, 115241), (2771, 79891), (11413, 19397), (12019, 18419), (13447, 16463)]