39907413

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6961}}^1$

素因数の和:6994

約数の個数: 36

約数和(自身を含む): 72223788

約数和(自身を除く): 32316375

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 5733, 6961, 20883, 48727, 62649, 90493, 146181, 271479, 341089, 438543, 633451, 814437, 1023267, 1900353, 3069801, 4434157, 5701059, 13302471, 39907413]

約数ペア:

[(1, 39907413), (3, 13302471), (7, 5701059), (9, 4434157), (13, 3069801), (21, 1900353), (39, 1023267), (49, 814437), (63, 633451), (91, 438543), (117, 341089), (147, 271479), (273, 146181), (441, 90493), (637, 62649), (819, 48727), (1911, 20883), (5733, 6961)]