21783885

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{85427}}^1$

素因数の和:85452

約数の個数: 16

約数和(自身を含む): 36904896

約数和(自身を除く): 15121011

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 85427, 256281, 427135, 1281405, 1452259, 4356777, 7261295, 21783885]

約数ペア:

[(1, 21783885), (3, 7261295), (5, 4356777), (15, 1452259), (17, 1281405), (51, 427135), (85, 256281), (255, 85427)]