261226726

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{19751}}^1$

素因数の和:20159

約数の個数: 16

約数和(自身を含む): 415977120

約数和(自身を除く): 154750394

約数列:

[1, 2, 17, 34, 389, 778, 6613, 13226, 19751, 39502, 335767, 671534, 7683139, 15366278, 130613363, 261226726]

約数ペア:

[(1, 261226726), (2, 130613363), (17, 15366278), (34, 7683139), (389, 671534), (778, 335767), (6613, 39502), (13226, 19751)]