21000388616

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{33228463}}^1$

素因数の和:33228548

約数の個数: 16

約数和(自身を含む): 39874156800

約数和(自身を除く): 18873768184

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 33228463, 66456926, 132913852, 265827704, 2625048577, 5250097154, 10500194308, 21000388616]

約数ペア:

[(1, 21000388616), (2, 10500194308), (4, 5250097154), (8, 2625048577), (79, 265827704), (158, 132913852), (316, 66456926), (632, 33228463)]