21873240

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:223

約数の個数: 160

約数和(自身を含む): 75707280

約数和(自身を除く): 53834040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 43, 45, 54, 60, 72, 81, 86, 90, 108, 120, 129, 135, 157, 162, 172, 180, 215, 216, 258, 270, 314, 324, 344, 360, 387, 405, 430, 471, 516, 540, 628, 645, 648, 774, 785, 810, 860, 942, 1032, 1080, 1161, 1256, 1290, 1413, 1548, 1570, 1620, 1720, 1884, 1935, 2322, 2355, 2580, 2826, 3096, 3140, 3240, 3483, 3768, 3870, 4239, 4644, 4710, 5160, 5652, 5805, 6280, 6751, 6966, 7065, 7740, 8478, 9288, 9420, 11304, 11610, 12717, 13502, 13932, 14130, 15480, 16956, 17415, 18840, 20253, 21195, 23220, 25434, 27004, 27864, 28260, 33755, 33912, 34830, 40506, 42390, 46440, 50868, 54008, 56520, 60759, 63585, 67510, 69660, 81012, 84780, 101265, 101736, 121518, 127170, 135020, 139320, 162024, 169560, 182277, 202530, 243036, 254340, 270040, 303795, 364554, 405060, 486072, 508680, 546831, 607590, 729108, 810120, 911385, 1093662, 1215180, 1458216, 1822770, 2187324, 2430360, 2734155, 3645540, 4374648, 5468310, 7291080, 10936620, 21873240]

約数ペア:

[(1, 21873240), (2, 10936620), (3, 7291080), (4, 5468310), (5, 4374648), (6, 3645540), (8, 2734155), (9, 2430360), (10, 2187324), (12, 1822770), (15, 1458216), (18, 1215180), (20, 1093662), (24, 911385), (27, 810120), (30, 729108), (36, 607590), (40, 546831), (43, 508680), (45, 486072), (54, 405060), (60, 364554), (72, 303795), (81, 270040), (86, 254340), (90, 243036), (108, 202530), (120, 182277), (129, 169560), (135, 162024), (157, 139320), (162, 135020), (172, 127170), (180, 121518), (215, 101736), (216, 101265), (258, 84780), (270, 81012), (314, 69660), (324, 67510), (344, 63585), (360, 60759), (387, 56520), (405, 54008), (430, 50868), (471, 46440), (516, 42390), (540, 40506), (628, 34830), (645, 33912), (648, 33755), (774, 28260), (785, 27864), (810, 27004), (860, 25434), (942, 23220), (1032, 21195), (1080, 20253), (1161, 18840), (1256, 17415), (1290, 16956), (1413, 15480), (1548, 14130), (1570, 13932), (1620, 13502), (1720, 12717), (1884, 11610), (1935, 11304), (2322, 9420), (2355, 9288), (2580, 8478), (2826, 7740), (3096, 7065), (3140, 6966), (3240, 6751), (3483, 6280), (3768, 5805), (3870, 5652), (4239, 5160), (4644, 4710)]