21351924

素因数分解:

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

素因数の和:2027

約数の個数: 72

約数和(自身を含む): 61090848

約数和(自身を除く): 39738924

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 81, 99, 108, 132, 162, 198, 243, 297, 324, 396, 486, 594, 891, 972, 1188, 1782, 1997, 2673, 3564, 3994, 5346, 5991, 7988, 10692, 11982, 17973, 21967, 23964, 35946, 43934, 53919, 65901, 71892, 87868, 107838, 131802, 161757, 197703, 215676, 263604, 323514, 395406, 485271, 593109, 647028, 790812, 970542, 1186218, 1779327, 1941084, 2372436, 3558654, 5337981, 7117308, 10675962, 21351924]

約数ペア:

[(1, 21351924), (2, 10675962), (3, 7117308), (4, 5337981), (6, 3558654), (9, 2372436), (11, 1941084), (12, 1779327), (18, 1186218), (22, 970542), (27, 790812), (33, 647028), (36, 593109), (44, 485271), (54, 395406), (66, 323514), (81, 263604), (99, 215676), (108, 197703), (132, 161757), (162, 131802), (198, 107838), (243, 87868), (297, 71892), (324, 65901), (396, 53919), (486, 43934), (594, 35946), (891, 23964), (972, 21967), (1188, 17973), (1782, 11982), (1997, 10692), (2673, 7988), (3564, 5991), (3994, 5346)]