21719550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{4993}}^1$

素因数の和:5037

約数の個数: 48

約数和(自身を含む): 55733040

約数和(自身を除く): 34013490

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 29, 30, 50, 58, 75, 87, 145, 150, 174, 290, 435, 725, 870, 1450, 2175, 4350, 4993, 9986, 14979, 24965, 29958, 49930, 74895, 124825, 144797, 149790, 249650, 289594, 374475, 434391, 723985, 748950, 868782, 1447970, 2171955, 3619925, 4343910, 7239850, 10859775, 21719550]

約数ペア:

[(1, 21719550), (2, 10859775), (3, 7239850), (5, 4343910), (6, 3619925), (10, 2171955), (15, 1447970), (25, 868782), (29, 748950), (30, 723985), (50, 434391), (58, 374475), (75, 289594), (87, 249650), (145, 149790), (150, 144797), (174, 124825), (290, 74895), (435, 49930), (725, 29958), (870, 24965), (1450, 14979), (2175, 9986), (4350, 4993)]