21656016

素因数分解:

$2^4\times 3^2\times {\mathrm{101}}^1\times {\mathrm{1489}}^1$

素因数の和:1604

約数の個数: 60

約数和(自身を含む): 61247940

約数和(自身を除く): 39591924

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 101, 144, 202, 303, 404, 606, 808, 909, 1212, 1489, 1616, 1818, 2424, 2978, 3636, 4467, 4848, 5956, 7272, 8934, 11912, 13401, 14544, 17868, 23824, 26802, 35736, 53604, 71472, 107208, 150389, 214416, 300778, 451167, 601556, 902334, 1203112, 1353501, 1804668, 2406224, 2707002, 3609336, 5414004, 7218672, 10828008, 21656016]

約数ペア:

[(1, 21656016), (2, 10828008), (3, 7218672), (4, 5414004), (6, 3609336), (8, 2707002), (9, 2406224), (12, 1804668), (16, 1353501), (18, 1203112), (24, 902334), (36, 601556), (48, 451167), (72, 300778), (101, 214416), (144, 150389), (202, 107208), (303, 71472), (404, 53604), (606, 35736), (808, 26802), (909, 23824), (1212, 17868), (1489, 14544), (1616, 13401), (1818, 11912), (2424, 8934), (2978, 7272), (3636, 5956), (4467, 4848)]