21399450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{179}}^1\times {\mathrm{797}}^1$

素因数の和:991

約数の個数: 48

約数和(自身を含む): 53434080

約数和(自身を除く): 32034630

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 179, 358, 537, 797, 895, 1074, 1594, 1790, 2391, 2685, 3985, 4475, 4782, 5370, 7970, 8950, 11955, 13425, 19925, 23910, 26850, 39850, 59775, 119550, 142663, 285326, 427989, 713315, 855978, 1426630, 2139945, 3566575, 4279890, 7133150, 10699725, 21399450]

約数ペア:

[(1, 21399450), (2, 10699725), (3, 7133150), (5, 4279890), (6, 3566575), (10, 2139945), (15, 1426630), (25, 855978), (30, 713315), (50, 427989), (75, 285326), (150, 142663), (179, 119550), (358, 59775), (537, 39850), (797, 26850), (895, 23910), (1074, 19925), (1594, 13425), (1790, 11955), (2391, 8950), (2685, 7970), (3985, 5370), (4475, 4782)]