21192065

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2909}}^1$

素因数の和:2992

約数の個数: 16

約数和(自身を含む): 26818560

約数和(自身を除く): 5626495

約数列:

[1, 5, 31, 47, 155, 235, 1457, 2909, 7285, 14545, 90179, 136723, 450895, 683615, 4238413, 21192065]

約数ペア:

[(1, 21192065), (5, 4238413), (31, 683615), (47, 450895), (155, 136723), (235, 90179), (1457, 14545), (2909, 7285)]