21171615

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{563}}^1$

素因数の和:703

約数の個数: 32

約数和(自身を含む): 35735040

約数和(自身を除く): 14563425

約数列:

[1, 3, 5, 15, 23, 69, 109, 115, 327, 345, 545, 563, 1635, 1689, 2507, 2815, 7521, 8445, 12535, 12949, 37605, 38847, 61367, 64745, 184101, 194235, 306835, 920505, 1411441, 4234323, 7057205, 21171615]

約数ペア:

[(1, 21171615), (3, 7057205), (5, 4234323), (15, 1411441), (23, 920505), (69, 306835), (109, 194235), (115, 184101), (327, 64745), (345, 61367), (545, 38847), (563, 37605), (1635, 12949), (1689, 12535), (2507, 8445), (2815, 7521)]