21030307

素因数分解:

${\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:366

約数の個数: 16

約数和(自身を含む): 22752000

約数和(自身を除く): 1721693

約数列:

[1, 29, 31, 149, 157, 899, 4321, 4553, 4619, 4867, 23393, 133951, 141143, 678397, 725183, 21030307]

約数ペア:

[(1, 21030307), (29, 725183), (31, 678397), (149, 141143), (157, 133951), (899, 23393), (4321, 4867), (4553, 4619)]