21673696

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{919}}^1$

素因数の和:1007

約数の個数: 48

約数和(自身を含む): 47295360

約数和(自身を除く): 25621664

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 67, 88, 134, 176, 268, 352, 536, 737, 919, 1072, 1474, 1838, 2144, 2948, 3676, 5896, 7352, 10109, 11792, 14704, 20218, 23584, 29408, 40436, 61573, 80872, 123146, 161744, 246292, 323488, 492584, 677303, 985168, 1354606, 1970336, 2709212, 5418424, 10836848, 21673696]

約数ペア:

[(1, 21673696), (2, 10836848), (4, 5418424), (8, 2709212), (11, 1970336), (16, 1354606), (22, 985168), (32, 677303), (44, 492584), (67, 323488), (88, 246292), (134, 161744), (176, 123146), (268, 80872), (352, 61573), (536, 40436), (737, 29408), (919, 23584), (1072, 20218), (1474, 14704), (1838, 11792), (2144, 10109), (2948, 7352), (3676, 5896)]