128547237

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{491}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 216724032

約数和(自身を除く): 88176795

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 137, 147, 273, 411, 491, 637, 959, 1473, 1781, 1911, 2877, 3437, 5343, 6383, 6713, 10311, 12467, 19149, 20139, 24059, 37401, 44681, 67267, 72177, 87269, 134043, 201801, 261807, 312767, 470869, 874471, 938301, 1412607, 2623413, 3296083, 6121297, 9888249, 18363891, 42849079, 128547237]

約数ペア:

[(1, 128547237), (3, 42849079), (7, 18363891), (13, 9888249), (21, 6121297), (39, 3296083), (49, 2623413), (91, 1412607), (137, 938301), (147, 874471), (273, 470869), (411, 312767), (491, 261807), (637, 201801), (959, 134043), (1473, 87269), (1781, 72177), (1911, 67267), (2877, 44681), (3437, 37401), (5343, 24059), (6383, 20139), (6713, 19149), (10311, 12467)]