20648061

素因数分解:

$3^3\times 7^2\times {\mathrm{15607}}^1$

素因数の和:15630

約数の個数: 24

約数和(自身を含む): 35586240

約数和(自身を除く): 14938179

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15607, 46821, 109249, 140463, 327747, 421389, 764743, 983241, 2294229, 2949723, 6882687, 20648061]

約数ペア:

[(1, 20648061), (3, 6882687), (7, 2949723), (9, 2294229), (21, 983241), (27, 764743), (49, 421389), (63, 327747), (147, 140463), (189, 109249), (441, 46821), (1323, 15607)]