21860115

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{887}}^1$

素因数の和:979

約数の個数: 32

約数和(自身を含む): 36827136

約数和(自身を除く): 14967021

約数列:

[1, 3, 5, 15, 31, 53, 93, 155, 159, 265, 465, 795, 887, 1643, 2661, 4435, 4929, 8215, 13305, 24645, 27497, 47011, 82491, 137485, 141033, 235055, 412455, 705165, 1457341, 4372023, 7286705, 21860115]

約数ペア:

[(1, 21860115), (3, 7286705), (5, 4372023), (15, 1457341), (31, 705165), (53, 412455), (93, 235055), (155, 141033), (159, 137485), (265, 82491), (465, 47011), (795, 27497), (887, 24645), (1643, 13305), (2661, 8215), (4435, 4929)]