220153521

素因数分解:

$3^1\times 7^3\times {\mathrm{213949}}^1$

素因数の和:213973

約数の個数: 16

約数和(自身を含む): 342320000

約数和(自身を除く): 122166479

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 213949, 641847, 1497643, 4492929, 10483501, 31450503, 73384507, 220153521]

約数ペア:

[(1, 220153521), (3, 73384507), (7, 31450503), (21, 10483501), (49, 4492929), (147, 1497643), (343, 641847), (1029, 213949)]