18878752467

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{557}}^1$

素因数の和:837

約数の個数: 72

約数和(自身を含む): 29556452016

約数和(自身を除く): 10677699549

約数列:

[1, 3, 9, 17, 51, 83, 153, 157, 249, 289, 471, 557, 747, 867, 1411, 1413, 1671, 2601, 2669, 4233, 5013, 8007, 9469, 12699, 13031, 23987, 24021, 28407, 39093, 45373, 46231, 71961, 85221, 87449, 117279, 136119, 138693, 160973, 215883, 221527, 262347, 408357, 416079, 482919, 664581, 785927, 787041, 1448757, 1486633, 1993743, 2357781, 3765959, 4459899, 7073343, 7258267, 11297877, 13360759, 13379697, 21774801, 25272761, 33893631, 40082277, 65324403, 75818283, 120246831, 123390539, 227454849, 370171617, 1110514851, 2097639163, 6292917489, 18878752467]

約数ペア:

[(1, 18878752467), (3, 6292917489), (9, 2097639163), (17, 1110514851), (51, 370171617), (83, 227454849), (153, 123390539), (157, 120246831), (249, 75818283), (289, 65324403), (471, 40082277), (557, 33893631), (747, 25272761), (867, 21774801), (1411, 13379697), (1413, 13360759), (1671, 11297877), (2601, 7258267), (2669, 7073343), (4233, 4459899), (5013, 3765959), (8007, 2357781), (9469, 1993743), (12699, 1486633), (13031, 1448757), (23987, 787041), (24021, 785927), (28407, 664581), (39093, 482919), (45373, 416079), (46231, 408357), (71961, 262347), (85221, 221527), (87449, 215883), (117279, 160973), (136119, 138693)]