20610863

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:207

約数の個数: 32

約数和(自身を含む): 26664960

約数和(自身を除く): 6054097

約数列:

[1, 7, 13, 47, 61, 79, 91, 329, 427, 553, 611, 793, 1027, 2867, 3713, 4277, 4819, 5551, 7189, 20069, 25991, 33733, 37271, 48269, 62647, 226493, 260897, 337883, 438529, 1585451, 2944409, 20610863]

約数ペア:

[(1, 20610863), (7, 2944409), (13, 1585451), (47, 438529), (61, 337883), (79, 260897), (91, 226493), (329, 62647), (427, 48269), (553, 37271), (611, 33733), (793, 25991), (1027, 20069), (2867, 7189), (3713, 5551), (4277, 4819)]