18831915

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 34201440

約数和(自身を除く): 15369525

約数列:

[1, 3, 5, 9, 15, 41, 45, 59, 123, 173, 177, 205, 295, 369, 519, 531, 615, 865, 885, 1557, 1845, 2419, 2595, 2655, 7093, 7257, 7785, 10207, 12095, 21279, 21771, 30621, 35465, 36285, 51035, 63837, 91863, 106395, 108855, 153105, 319185, 418487, 459315, 1255461, 2092435, 3766383, 6277305, 18831915]

約数ペア:

[(1, 18831915), (3, 6277305), (5, 3766383), (9, 2092435), (15, 1255461), (41, 459315), (45, 418487), (59, 319185), (123, 153105), (173, 108855), (177, 106395), (205, 91863), (295, 63837), (369, 51035), (519, 36285), (531, 35465), (615, 30621), (865, 21771), (885, 21279), (1557, 12095), (1845, 10207), (2419, 7785), (2595, 7257), (2655, 7093)]