21842290

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70459}}^1$

素因数の和:70497

約数の個数: 16

約数和(自身を含む): 40584960

約数和(自身を除く): 18742670

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 70459, 140918, 352295, 704590, 2184229, 4368458, 10921145, 21842290]

約数ペア:

[(1, 21842290), (2, 10921145), (5, 4368458), (10, 2184229), (31, 704590), (62, 352295), (155, 140918), (310, 70459)]