21647190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10163}}^1$

素因数の和:10244

約数の個数: 32

約数和(自身を含む): 52690176

約数和(自身を除く): 31042986

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 426, 710, 1065, 2130, 10163, 20326, 30489, 50815, 60978, 101630, 152445, 304890, 721573, 1443146, 2164719, 3607865, 4329438, 7215730, 10823595, 21647190]

約数ペア:

[(1, 21647190), (2, 10823595), (3, 7215730), (5, 4329438), (6, 3607865), (10, 2164719), (15, 1443146), (30, 721573), (71, 304890), (142, 152445), (213, 101630), (355, 60978), (426, 50815), (710, 30489), (1065, 20326), (2130, 10163)]