21002784

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19889}}^1$

素因数の和:19913

約数の個数: 48

約数和(自身を含む): 60147360

約数和(自身を除く): 39144576

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 66, 88, 96, 132, 176, 264, 352, 528, 1056, 19889, 39778, 59667, 79556, 119334, 159112, 218779, 238668, 318224, 437558, 477336, 636448, 656337, 875116, 954672, 1312674, 1750232, 1909344, 2625348, 3500464, 5250696, 7000928, 10501392, 21002784]

約数ペア:

[(1, 21002784), (2, 10501392), (3, 7000928), (4, 5250696), (6, 3500464), (8, 2625348), (11, 1909344), (12, 1750232), (16, 1312674), (22, 954672), (24, 875116), (32, 656337), (33, 636448), (44, 477336), (48, 437558), (66, 318224), (88, 238668), (96, 218779), (132, 159112), (176, 119334), (264, 79556), (352, 59667), (528, 39778), (1056, 19889)]