81155214

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{644089}}^1$

素因数の和:644104

約数の個数: 24

約数和(自身を含む): 200956080

約数和(自身を除く): 119800866

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 644089, 1288178, 1932267, 3864534, 4508623, 5796801, 9017246, 11593602, 13525869, 27051738, 40577607, 81155214]

約数ペア:

[(1, 81155214), (2, 40577607), (3, 27051738), (6, 13525869), (7, 11593602), (9, 9017246), (14, 5796801), (18, 4508623), (21, 3864534), (42, 1932267), (63, 1288178), (126, 644089)]