21644847

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1613}}^1$

素因数の和:1700

約数の個数: 32

約数和(自身を含む): 37186560

約数和(自身を除く): 15541713

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 497, 639, 1491, 1613, 1917, 4473, 4839, 11291, 13419, 14517, 33873, 43551, 101619, 114523, 304857, 343569, 801661, 1030707, 2404983, 3092121, 7214949, 21644847]

約数ペア:

[(1, 21644847), (3, 7214949), (7, 3092121), (9, 2404983), (21, 1030707), (27, 801661), (63, 343569), (71, 304857), (189, 114523), (213, 101619), (497, 43551), (639, 33873), (1491, 14517), (1613, 13419), (1917, 11291), (4473, 4839)]