18478684

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{3251}}^1$

素因数の和:3298

約数の個数: 36

約数和(自身を含む): 38926440

約数和(自身を除く): 20447756

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 406, 812, 1421, 2842, 3251, 5684, 6502, 13004, 22757, 45514, 91028, 94279, 159299, 188558, 318598, 377116, 637196, 659953, 1319906, 2639812, 4619671, 9239342, 18478684]

約数ペア:

[(1, 18478684), (2, 9239342), (4, 4619671), (7, 2639812), (14, 1319906), (28, 659953), (29, 637196), (49, 377116), (58, 318598), (98, 188558), (116, 159299), (196, 94279), (203, 91028), (406, 45514), (812, 22757), (1421, 13004), (2842, 6502), (3251, 5684)]