18894872

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1249}}^1$

素因数の和:1347

約数の個数: 32

約数和(自身を含む): 37200000

約数和(自身を除く): 18305128

約数列:

[1, 2, 4, 8, 31, 61, 62, 122, 124, 244, 248, 488, 1249, 1891, 2498, 3782, 4996, 7564, 9992, 15128, 38719, 76189, 77438, 152378, 154876, 304756, 309752, 609512, 2361859, 4723718, 9447436, 18894872]

約数ペア:

[(1, 18894872), (2, 9447436), (4, 4723718), (8, 2361859), (31, 609512), (61, 309752), (62, 304756), (122, 154876), (124, 152378), (244, 77438), (248, 76189), (488, 38719), (1249, 15128), (1891, 9992), (2498, 7564), (3782, 4996)]