21706960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1451}}^1$

素因数の和:1492

約数の個数: 80

約数和(自身を含む): 58335552

約数和(自身を除く): 36628592

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1451, 1496, 1870, 2902, 2992, 3740, 5804, 7255, 7480, 11608, 14510, 14960, 15961, 23216, 24667, 29020, 31922, 49334, 58040, 63844, 79805, 98668, 116080, 123335, 127688, 159610, 197336, 246670, 255376, 271337, 319220, 394672, 493340, 542674, 638440, 986680, 1085348, 1276880, 1356685, 1973360, 2170696, 2713370, 4341392, 5426740, 10853480, 21706960]

約数ペア:

[(1, 21706960), (2, 10853480), (4, 5426740), (5, 4341392), (8, 2713370), (10, 2170696), (11, 1973360), (16, 1356685), (17, 1276880), (20, 1085348), (22, 986680), (34, 638440), (40, 542674), (44, 493340), (55, 394672), (68, 319220), (80, 271337), (85, 255376), (88, 246670), (110, 197336), (136, 159610), (170, 127688), (176, 123335), (187, 116080), (220, 98668), (272, 79805), (340, 63844), (374, 58040), (440, 49334), (680, 31922), (748, 29020), (880, 24667), (935, 23216), (1360, 15961), (1451, 14960), (1496, 14510), (1870, 11608), (2902, 7480), (2992, 7255), (3740, 5804)]