21425790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4549}}^1$

素因数の和:4716

約数の個数: 32

約数和(自身を含む): 51760800

約数和(自身を除く): 30335010

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 157, 314, 471, 785, 942, 1570, 2355, 4549, 4710, 9098, 13647, 22745, 27294, 45490, 68235, 136470, 714193, 1428386, 2142579, 3570965, 4285158, 7141930, 10712895, 21425790]

約数ペア:

[(1, 21425790), (2, 10712895), (3, 7141930), (5, 4285158), (6, 3570965), (10, 2142579), (15, 1428386), (30, 714193), (157, 136470), (314, 68235), (471, 45490), (785, 27294), (942, 22745), (1570, 13647), (2355, 9098), (4549, 4710)]