18657444

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{601}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 47196800

約数和(自身を除く): 28539356

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 199, 398, 597, 601, 796, 1194, 1202, 1803, 2388, 2404, 2587, 3606, 5174, 7212, 7761, 7813, 10348, 15522, 15626, 23439, 31044, 31252, 46878, 93756, 119599, 239198, 358797, 478396, 717594, 1435188, 1554787, 3109574, 4664361, 6219148, 9328722, 18657444]

約数ペア:

[(1, 18657444), (2, 9328722), (3, 6219148), (4, 4664361), (6, 3109574), (12, 1554787), (13, 1435188), (26, 717594), (39, 478396), (52, 358797), (78, 239198), (156, 119599), (199, 93756), (398, 46878), (597, 31252), (601, 31044), (796, 23439), (1194, 15626), (1202, 15522), (1803, 10348), (2388, 7813), (2404, 7761), (2587, 7212), (3606, 5174)]