21504135

素因数分解:

$3^1\times 5^1\times {\mathrm{457}}^1\times {\mathrm{3137}}^1$

素因数の和:3602

約数の個数: 16

約数和(自身を含む): 34492896

約数和(自身を除く): 12988761

約数列:

[1, 3, 5, 15, 457, 1371, 2285, 3137, 6855, 9411, 15685, 47055, 1433609, 4300827, 7168045, 21504135]

約数ペア:

[(1, 21504135), (3, 7168045), (5, 4300827), (15, 1433609), (457, 47055), (1371, 15685), (2285, 9411), (3137, 6855)]