18979488

素因数分解:

$2^5\times 3^3\times {\mathrm{11}}^1\times {\mathrm{1997}}^1$

素因数の和:2027

約数の個数: 96

約数和(自身を含む): 60419520

約数和(自身を除く): 41440032

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 32, 33, 36, 44, 48, 54, 66, 72, 88, 96, 99, 108, 132, 144, 176, 198, 216, 264, 288, 297, 352, 396, 432, 528, 594, 792, 864, 1056, 1188, 1584, 1997, 2376, 3168, 3994, 4752, 5991, 7988, 9504, 11982, 15976, 17973, 21967, 23964, 31952, 35946, 43934, 47928, 53919, 63904, 65901, 71892, 87868, 95856, 107838, 131802, 143784, 175736, 191712, 197703, 215676, 263604, 287568, 351472, 395406, 431352, 527208, 575136, 593109, 702944, 790812, 862704, 1054416, 1186218, 1581624, 1725408, 2108832, 2372436, 3163248, 4744872, 6326496, 9489744, 18979488]

約数ペア:

[(1, 18979488), (2, 9489744), (3, 6326496), (4, 4744872), (6, 3163248), (8, 2372436), (9, 2108832), (11, 1725408), (12, 1581624), (16, 1186218), (18, 1054416), (22, 862704), (24, 790812), (27, 702944), (32, 593109), (33, 575136), (36, 527208), (44, 431352), (48, 395406), (54, 351472), (66, 287568), (72, 263604), (88, 215676), (96, 197703), (99, 191712), (108, 175736), (132, 143784), (144, 131802), (176, 107838), (198, 95856), (216, 87868), (264, 71892), (288, 65901), (297, 63904), (352, 53919), (396, 47928), (432, 43934), (528, 35946), (594, 31952), (792, 23964), (864, 21967), (1056, 17973), (1188, 15976), (1584, 11982), (1997, 9504), (2376, 7988), (3168, 5991), (3994, 4752)]