21299210

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1$

素因数の和:422

約数の個数: 32

約数和(自身を含む): 39320640

約数和(自身を除く): 18021430

約数列:

[1, 2, 5, 10, 73, 146, 163, 179, 326, 358, 365, 730, 815, 895, 1630, 1790, 11899, 13067, 23798, 26134, 29177, 58354, 59495, 65335, 118990, 130670, 145885, 291770, 2129921, 4259842, 10649605, 21299210]

約数ペア:

[(1, 21299210), (2, 10649605), (5, 4259842), (10, 2129921), (73, 291770), (146, 145885), (163, 130670), (179, 118990), (326, 65335), (358, 59495), (365, 58354), (730, 29177), (815, 26134), (895, 23798), (1630, 13067), (1790, 11899)]