21812760

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1063}}^1$

素因数の和:1102

約数の個数: 128

約数和(自身を含む): 76608000

約数和(自身を除く): 54795240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1063, 1080, 1140, 1368, 1710, 2052, 2126, 2280, 2565, 3189, 3420, 4104, 4252, 5130, 5315, 6378, 6840, 8504, 9567, 10260, 10630, 12756, 15945, 19134, 20197, 20520, 21260, 25512, 28701, 31890, 38268, 40394, 42520, 47835, 57402, 60591, 63780, 76536, 80788, 95670, 100985, 114804, 121182, 127560, 143505, 161576, 181773, 191340, 201970, 229608, 242364, 287010, 302955, 363546, 382680, 403940, 484728, 545319, 574020, 605910, 727092, 807880, 908865, 1090638, 1148040, 1211820, 1454184, 1817730, 2181276, 2423640, 2726595, 3635460, 4362552, 5453190, 7270920, 10906380, 21812760]

約数ペア:

[(1, 21812760), (2, 10906380), (3, 7270920), (4, 5453190), (5, 4362552), (6, 3635460), (8, 2726595), (9, 2423640), (10, 2181276), (12, 1817730), (15, 1454184), (18, 1211820), (19, 1148040), (20, 1090638), (24, 908865), (27, 807880), (30, 727092), (36, 605910), (38, 574020), (40, 545319), (45, 484728), (54, 403940), (57, 382680), (60, 363546), (72, 302955), (76, 287010), (90, 242364), (95, 229608), (108, 201970), (114, 191340), (120, 181773), (135, 161576), (152, 143505), (171, 127560), (180, 121182), (190, 114804), (216, 100985), (228, 95670), (270, 80788), (285, 76536), (342, 63780), (360, 60591), (380, 57402), (456, 47835), (513, 42520), (540, 40394), (570, 38268), (684, 31890), (760, 28701), (855, 25512), (1026, 21260), (1063, 20520), (1080, 20197), (1140, 19134), (1368, 15945), (1710, 12756), (2052, 10630), (2126, 10260), (2280, 9567), (2565, 8504), (3189, 6840), (3420, 6378), (4104, 5315), (4252, 5130)]