20321685

素因数分解:

$3^4\times 5^1\times {\mathrm{50177}}^1$

素因数の和:50194

約数の個数: 20

約数和(自身を含む): 36429228

約数和(自身を除く): 16107543

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 50177, 150531, 250885, 451593, 752655, 1354779, 2257965, 4064337, 6773895, 20321685]

約数ペア:

[(1, 20321685), (3, 6773895), (5, 4064337), (9, 2257965), (15, 1354779), (27, 752655), (45, 451593), (81, 250885), (135, 150531), (405, 50177)]