21968925

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{859}}^1$

素因数の和:914

約数の個数: 48

約数和(自身を含む): 40949760

約数和(自身を除く): 18980835

約数列:

[1, 3, 5, 11, 15, 25, 31, 33, 55, 75, 93, 155, 165, 275, 341, 465, 775, 825, 859, 1023, 1705, 2325, 2577, 4295, 5115, 8525, 9449, 12885, 21475, 25575, 26629, 28347, 47245, 64425, 79887, 133145, 141735, 236225, 292919, 399435, 665725, 708675, 878757, 1464595, 1997175, 4393785, 7322975, 21968925]

約数ペア:

[(1, 21968925), (3, 7322975), (5, 4393785), (11, 1997175), (15, 1464595), (25, 878757), (31, 708675), (33, 665725), (55, 399435), (75, 292919), (93, 236225), (155, 141735), (165, 133145), (275, 79887), (341, 64425), (465, 47245), (775, 28347), (825, 26629), (859, 25575), (1023, 21475), (1705, 12885), (2325, 9449), (2577, 8525), (4295, 5115)]