21355095

素因数分解:

$3^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2797}}^1$

素因数の和:3314

約数の個数: 16

約数和(自身を含む): 34247520

約数和(自身を除く): 12892425

約数列:

[1, 3, 5, 15, 509, 1527, 2545, 2797, 7635, 8391, 13985, 41955, 1423673, 4271019, 7118365, 21355095]

約数ペア:

[(1, 21355095), (3, 7118365), (5, 4271019), (15, 1423673), (509, 41955), (1527, 13985), (2545, 8391), (2797, 7635)]