21696995

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{971}}^1$

素因数の和:1126

約数の個数: 16

約数和(自身を含む): 26943840

約数和(自身を除く): 5246845

約数列:

[1, 5, 41, 109, 205, 545, 971, 4469, 4855, 22345, 39811, 105839, 199055, 529195, 4339399, 21696995]

約数ペア:

[(1, 21696995), (5, 4339399), (41, 529195), (109, 199055), (205, 105839), (545, 39811), (971, 22345), (4469, 4855)]