18005008

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8461}}^1$

素因数の和:8495

約数の個数: 40

約数和(自身を含む): 41971520

約数和(自身を除く): 23966512

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 8461, 16922, 33844, 59227, 67688, 118454, 135376, 160759, 236908, 321518, 473816, 643036, 947632, 1125313, 1286072, 2250626, 2572144, 4501252, 9002504, 18005008]

約数ペア:

[(1, 18005008), (2, 9002504), (4, 4501252), (7, 2572144), (8, 2250626), (14, 1286072), (16, 1125313), (19, 947632), (28, 643036), (38, 473816), (56, 321518), (76, 236908), (112, 160759), (133, 135376), (152, 118454), (266, 67688), (304, 59227), (532, 33844), (1064, 16922), (2128, 8461)]