20513898

素因数分解:

$2^1\times 3^4\times {\mathrm{139}}^1\times {\mathrm{911}}^1$

素因数の和:1064

約数の個数: 40

約数和(自身を含む): 46347840

約数和(自身を除く): 25833942

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 139, 162, 278, 417, 834, 911, 1251, 1822, 2502, 2733, 3753, 5466, 7506, 8199, 11259, 16398, 22518, 24597, 49194, 73791, 126629, 147582, 253258, 379887, 759774, 1139661, 2279322, 3418983, 6837966, 10256949, 20513898]

約数ペア:

[(1, 20513898), (2, 10256949), (3, 6837966), (6, 3418983), (9, 2279322), (18, 1139661), (27, 759774), (54, 379887), (81, 253258), (139, 147582), (162, 126629), (278, 73791), (417, 49194), (834, 24597), (911, 22518), (1251, 16398), (1822, 11259), (2502, 8199), (2733, 7506), (3753, 5466)]