20178233406

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{409}}^1\times {\mathrm{21247}}^1$

素因数の和:21710

約数の個数: 64

約数和(自身を含む): 45997670400

約数和(自身を除く): 25819436994

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 86, 129, 258, 387, 409, 774, 818, 1161, 1227, 2322, 2454, 3681, 7362, 11043, 17587, 21247, 22086, 35174, 42494, 52761, 63741, 105522, 127482, 158283, 191223, 316566, 382446, 474849, 573669, 913621, 949698, 1147338, 1827242, 2740863, 5481726, 8222589, 8690023, 16445178, 17380046, 24667767, 26070069, 49335534, 52140138, 78210207, 156420414, 234630621, 373670989, 469261242, 747341978, 1121012967, 2242025934, 3363038901, 6726077802, 10089116703, 20178233406]

約数ペア:

[(1, 20178233406), (2, 10089116703), (3, 6726077802), (6, 3363038901), (9, 2242025934), (18, 1121012967), (27, 747341978), (43, 469261242), (54, 373670989), (86, 234630621), (129, 156420414), (258, 78210207), (387, 52140138), (409, 49335534), (774, 26070069), (818, 24667767), (1161, 17380046), (1227, 16445178), (2322, 8690023), (2454, 8222589), (3681, 5481726), (7362, 2740863), (11043, 1827242), (17587, 1147338), (21247, 949698), (22086, 913621), (35174, 573669), (42494, 474849), (52761, 382446), (63741, 316566), (105522, 191223), (127482, 158283)]