21359985

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{613}}^1$

素因数の和:745

約数の個数: 32

約数和(自身を含む): 36073728

約数和(自身を除く): 14713743

約数列:

[1, 3, 5, 15, 23, 69, 101, 115, 303, 345, 505, 613, 1515, 1839, 2323, 3065, 6969, 9195, 11615, 14099, 34845, 42297, 61913, 70495, 185739, 211485, 309565, 928695, 1423999, 4271997, 7119995, 21359985]

約数ペア:

[(1, 21359985), (3, 7119995), (5, 4271997), (15, 1423999), (23, 928695), (69, 309565), (101, 211485), (115, 185739), (303, 70495), (345, 61913), (505, 42297), (613, 34845), (1515, 14099), (1839, 11615), (2323, 9195), (3065, 6969)]