19806174

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:502

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 27471906

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 37, 46, 54, 69, 74, 111, 138, 207, 222, 333, 414, 431, 621, 666, 851, 862, 999, 1242, 1293, 1702, 1998, 2553, 2586, 3879, 5106, 7659, 7758, 9913, 11637, 15318, 15947, 19826, 22977, 23274, 29739, 31894, 45954, 47841, 59478, 89217, 95682, 143523, 178434, 267651, 287046, 366781, 430569, 535302, 733562, 861138, 1100343, 2200686, 3301029, 6602058, 9903087, 19806174]

約数ペア:

[(1, 19806174), (2, 9903087), (3, 6602058), (6, 3301029), (9, 2200686), (18, 1100343), (23, 861138), (27, 733562), (37, 535302), (46, 430569), (54, 366781), (69, 287046), (74, 267651), (111, 178434), (138, 143523), (207, 95682), (222, 89217), (333, 59478), (414, 47841), (431, 45954), (621, 31894), (666, 29739), (851, 23274), (862, 22977), (999, 19826), (1242, 15947), (1293, 15318), (1702, 11637), (1998, 9913), (2553, 7758), (2586, 7659), (3879, 5106)]