18556328

素因数分解:

$2^3\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1447}}^1$

素因数の和:1689

約数の個数: 32

約数和(自身を含む): 39964800

約数和(自身を除く): 21408472

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 229, 458, 916, 1447, 1603, 1832, 2894, 3206, 5788, 6412, 10129, 11576, 12824, 20258, 40516, 81032, 331363, 662726, 1325452, 2319541, 2650904, 4639082, 9278164, 18556328]

約数ペア:

[(1, 18556328), (2, 9278164), (4, 4639082), (7, 2650904), (8, 2319541), (14, 1325452), (28, 662726), (56, 331363), (229, 81032), (458, 40516), (916, 20258), (1447, 12824), (1603, 11576), (1832, 10129), (2894, 6412), (3206, 5788)]