21795705

素因数分解:

$3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6131}}^1$

素因数の和:6221

約数の個数: 24

約数和(自身を含む): 38263680

約数和(自身を除く): 16467975

約数列:

[1, 3, 5, 9, 15, 45, 79, 237, 395, 711, 1185, 3555, 6131, 18393, 30655, 55179, 91965, 275895, 484349, 1453047, 2421745, 4359141, 7265235, 21795705]

約数ペア:

[(1, 21795705), (3, 7265235), (5, 4359141), (9, 2421745), (15, 1453047), (45, 484349), (79, 275895), (237, 91965), (395, 55179), (711, 30655), (1185, 18393), (3555, 6131)]