13721445

素因数分解:

$3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4177}}^1$

素因数の和:4261

約数の個数: 24

約数和(自身を含む): 24115416

約数和(自身を除く): 10393971

約数列:

[1, 3, 5, 9, 15, 45, 73, 219, 365, 657, 1095, 3285, 4177, 12531, 20885, 37593, 62655, 187965, 304921, 914763, 1524605, 2744289, 4573815, 13721445]

約数ペア:

[(1, 13721445), (3, 4573815), (5, 2744289), (9, 1524605), (15, 914763), (45, 304921), (73, 187965), (219, 62655), (365, 37593), (657, 20885), (1095, 12531), (3285, 4177)]