18941608

素因数分解:

$2^3\times 7^1\times {\mathrm{409}}^1\times {\mathrm{827}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 40737600

約数和(自身を除く): 21795992

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 409, 818, 827, 1636, 1654, 2863, 3272, 3308, 5726, 5789, 6616, 11452, 11578, 22904, 23156, 46312, 338243, 676486, 1352972, 2367701, 2705944, 4735402, 9470804, 18941608]

約数ペア:

[(1, 18941608), (2, 9470804), (4, 4735402), (7, 2705944), (8, 2367701), (14, 1352972), (28, 676486), (56, 338243), (409, 46312), (818, 23156), (827, 22904), (1636, 11578), (1654, 11452), (2863, 6616), (3272, 5789), (3308, 5726)]