21567240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{431}}^1$

素因数の和:587

約数の個数: 96

約数和(自身を含む): 70761600

約数和(自身を除く): 49194360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 139, 180, 278, 360, 417, 431, 556, 695, 834, 862, 1112, 1251, 1293, 1390, 1668, 1724, 2085, 2155, 2502, 2586, 2780, 3336, 3448, 3879, 4170, 4310, 5004, 5172, 5560, 6255, 6465, 7758, 8340, 8620, 10008, 10344, 12510, 12930, 15516, 16680, 17240, 19395, 25020, 25860, 31032, 38790, 50040, 51720, 59909, 77580, 119818, 155160, 179727, 239636, 299545, 359454, 479272, 539181, 599090, 718908, 898635, 1078362, 1198180, 1437816, 1797270, 2156724, 2396360, 2695905, 3594540, 4313448, 5391810, 7189080, 10783620, 21567240]

約数ペア:

[(1, 21567240), (2, 10783620), (3, 7189080), (4, 5391810), (5, 4313448), (6, 3594540), (8, 2695905), (9, 2396360), (10, 2156724), (12, 1797270), (15, 1437816), (18, 1198180), (20, 1078362), (24, 898635), (30, 718908), (36, 599090), (40, 539181), (45, 479272), (60, 359454), (72, 299545), (90, 239636), (120, 179727), (139, 155160), (180, 119818), (278, 77580), (360, 59909), (417, 51720), (431, 50040), (556, 38790), (695, 31032), (834, 25860), (862, 25020), (1112, 19395), (1251, 17240), (1293, 16680), (1390, 15516), (1668, 12930), (1724, 12510), (2085, 10344), (2155, 10008), (2502, 8620), (2586, 8340), (2780, 7758), (3336, 6465), (3448, 6255), (3879, 5560), (4170, 5172), (4310, 5004)]