21541320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1129}}^1$

素因数の和:1199

約数の個数: 96

約数和(自身を含む): 71393400

約数和(自身を除く): 49852080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 53, 60, 72, 90, 106, 120, 159, 180, 212, 265, 318, 360, 424, 477, 530, 636, 795, 954, 1060, 1129, 1272, 1590, 1908, 2120, 2258, 2385, 3180, 3387, 3816, 4516, 4770, 5645, 6360, 6774, 9032, 9540, 10161, 11290, 13548, 16935, 19080, 20322, 22580, 27096, 33870, 40644, 45160, 50805, 59837, 67740, 81288, 101610, 119674, 135480, 179511, 203220, 239348, 299185, 359022, 406440, 478696, 538533, 598370, 718044, 897555, 1077066, 1196740, 1436088, 1795110, 2154132, 2393480, 2692665, 3590220, 4308264, 5385330, 7180440, 10770660, 21541320]

約数ペア:

[(1, 21541320), (2, 10770660), (3, 7180440), (4, 5385330), (5, 4308264), (6, 3590220), (8, 2692665), (9, 2393480), (10, 2154132), (12, 1795110), (15, 1436088), (18, 1196740), (20, 1077066), (24, 897555), (30, 718044), (36, 598370), (40, 538533), (45, 478696), (53, 406440), (60, 359022), (72, 299185), (90, 239348), (106, 203220), (120, 179511), (159, 135480), (180, 119674), (212, 101610), (265, 81288), (318, 67740), (360, 59837), (424, 50805), (477, 45160), (530, 40644), (636, 33870), (795, 27096), (954, 22580), (1060, 20322), (1129, 19080), (1272, 16935), (1590, 13548), (1908, 11290), (2120, 10161), (2258, 9540), (2385, 9032), (3180, 6774), (3387, 6360), (3816, 5645), (4516, 4770)]