21231678

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{272201}}^1$

素因数の和:272219

約数の個数: 16

約数和(自身を含む): 45729936

約数和(自身を除く): 24498258

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 272201, 544402, 816603, 1633206, 3538613, 7077226, 10615839, 21231678]

約数ペア:

[(1, 21231678), (2, 10615839), (3, 7077226), (6, 3538613), (13, 1633206), (26, 816603), (39, 544402), (78, 272201)]