21490006

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{20389}}^1$

素因数の和:20439

約数の個数: 16

約数和(自身を含む): 35233920

約数和(自身を除く): 13743914

約数列:

[1, 2, 17, 31, 34, 62, 527, 1054, 20389, 40778, 346613, 632059, 693226, 1264118, 10745003, 21490006]

約数ペア:

[(1, 21490006), (2, 10745003), (17, 1264118), (31, 693226), (34, 632059), (62, 346613), (527, 40778), (1054, 20389)]