18821072

素因数分解:

$2^4\times {\mathrm{991}}^1\times {\mathrm{1187}}^1$

素因数の和:2186

約数の個数: 20

約数和(自身を含む): 36533376

約数和(自身を除く): 17712304

約数列:

[1, 2, 4, 8, 16, 991, 1187, 1982, 2374, 3964, 4748, 7928, 9496, 15856, 18992, 1176317, 2352634, 4705268, 9410536, 18821072]

約数ペア:

[(1, 18821072), (2, 9410536), (4, 4705268), (8, 2352634), (16, 1176317), (991, 18992), (1187, 15856), (1982, 9496), (2374, 7928), (3964, 4748)]