25481589

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 41492736

約数和(自身を除く): 16011147

約数列:

[1, 3, 7, 17, 21, 51, 119, 137, 357, 411, 521, 959, 1563, 2329, 2877, 3647, 6987, 8857, 10941, 16303, 26571, 48909, 61999, 71377, 185997, 214131, 499639, 1213409, 1498917, 3640227, 8493863, 25481589]

約数ペア:

[(1, 25481589), (3, 8493863), (7, 3640227), (17, 1498917), (21, 1213409), (51, 499639), (119, 214131), (137, 185997), (357, 71377), (411, 61999), (521, 48909), (959, 26571), (1563, 16303), (2329, 10941), (2877, 8857), (3647, 6987)]