18912645

素因数分解:

$3^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{863}}^1$

素因数の和:1361

約数の個数: 24

約数和(自身を含む): 32887296

約数和(自身を除く): 13974651

約数列:

[1, 3, 5, 9, 15, 45, 487, 863, 1461, 2435, 2589, 4315, 4383, 7305, 7767, 12945, 21915, 38835, 420281, 1260843, 2101405, 3782529, 6304215, 18912645]

約数ペア:

[(1, 18912645), (3, 6304215), (5, 3782529), (9, 2101405), (15, 1260843), (45, 420281), (487, 38835), (863, 21915), (1461, 12945), (2435, 7767), (2589, 7305), (4315, 4383)]