21864975

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1559}}^1$

素因数の和:1600

約数の個数: 48

約数和(自身を含む): 41783040

約数和(自身を除く): 19918065

約数列:

[1, 3, 5, 11, 15, 17, 25, 33, 51, 55, 75, 85, 165, 187, 255, 275, 425, 561, 825, 935, 1275, 1559, 2805, 4675, 4677, 7795, 14025, 17149, 23385, 26503, 38975, 51447, 79509, 85745, 116925, 132515, 257235, 291533, 397545, 428725, 662575, 874599, 1286175, 1457665, 1987725, 4372995, 7288325, 21864975]

約数ペア:

[(1, 21864975), (3, 7288325), (5, 4372995), (11, 1987725), (15, 1457665), (17, 1286175), (25, 874599), (33, 662575), (51, 428725), (55, 397545), (75, 291533), (85, 257235), (165, 132515), (187, 116925), (255, 85745), (275, 79509), (425, 51447), (561, 38975), (825, 26503), (935, 23385), (1275, 17149), (1559, 14025), (2805, 7795), (4675, 4677)]