21891630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31727}}^1$

素因数の和:31760

約数の個数: 32

約数和(自身を含む): 54825984

約数和(自身を除く): 32934354

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 31727, 63454, 95181, 158635, 190362, 317270, 475905, 729721, 951810, 1459442, 2189163, 3648605, 4378326, 7297210, 10945815, 21891630]

約数ペア:

[(1, 21891630), (2, 10945815), (3, 7297210), (5, 4378326), (6, 3648605), (10, 2189163), (15, 1459442), (23, 951810), (30, 729721), (46, 475905), (69, 317270), (115, 190362), (138, 158635), (230, 95181), (345, 63454), (690, 31727)]