21118680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5333}}^1$

素因数の和:5361

約数の個数: 96

約数和(自身を含む): 74889360

約数和(自身を除く): 53770680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 5333, 10666, 15999, 21332, 26665, 31998, 42664, 47997, 53330, 58663, 63996, 79995, 95994, 106660, 117326, 127992, 159990, 175989, 191988, 213320, 234652, 239985, 293315, 319980, 351978, 383976, 469304, 479970, 527967, 586630, 639960, 703956, 879945, 959940, 1055934, 1173260, 1407912, 1759890, 1919880, 2111868, 2346520, 2639835, 3519780, 4223736, 5279670, 7039560, 10559340, 21118680]

約数ペア:

[(1, 21118680), (2, 10559340), (3, 7039560), (4, 5279670), (5, 4223736), (6, 3519780), (8, 2639835), (9, 2346520), (10, 2111868), (11, 1919880), (12, 1759890), (15, 1407912), (18, 1173260), (20, 1055934), (22, 959940), (24, 879945), (30, 703956), (33, 639960), (36, 586630), (40, 527967), (44, 479970), (45, 469304), (55, 383976), (60, 351978), (66, 319980), (72, 293315), (88, 239985), (90, 234652), (99, 213320), (110, 191988), (120, 175989), (132, 159990), (165, 127992), (180, 117326), (198, 106660), (220, 95994), (264, 79995), (330, 63996), (360, 58663), (396, 53330), (440, 47997), (495, 42664), (660, 31998), (792, 26665), (990, 21332), (1320, 15999), (1980, 10666), (3960, 5333)]