20908134

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{449}}^1$

素因数の和:669

約数の個数: 48

約数和(自身を含む): 49140000

約数和(自身を除く): 28231866

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 199, 234, 398, 449, 597, 898, 1194, 1347, 1791, 2587, 2694, 3582, 4041, 5174, 5837, 7761, 8082, 11674, 15522, 17511, 23283, 35022, 46566, 52533, 89351, 105066, 178702, 268053, 536106, 804159, 1161563, 1608318, 2323126, 3484689, 6969378, 10454067, 20908134]

約数ペア:

[(1, 20908134), (2, 10454067), (3, 6969378), (6, 3484689), (9, 2323126), (13, 1608318), (18, 1161563), (26, 804159), (39, 536106), (78, 268053), (117, 178702), (199, 105066), (234, 89351), (398, 52533), (449, 46566), (597, 35022), (898, 23283), (1194, 17511), (1347, 15522), (1791, 11674), (2587, 8082), (2694, 7761), (3582, 5837), (4041, 5174)]