28853630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{221951}}^1$

素因数の和:221971

約数の個数: 16

約数和(自身を含む): 55931904

約数和(自身を除く): 27078274

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 221951, 443902, 1109755, 2219510, 2885363, 5770726, 14426815, 28853630]

約数ペア:

[(1, 28853630), (2, 14426815), (5, 5770726), (10, 2885363), (13, 2219510), (26, 1109755), (65, 443902), (130, 221951)]