1490399997

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{641}}^1\times {\mathrm{20947}}^1$

素因数の和:21628

約数の個数: 16

約数和(自身を含む): 2044189632

約数和(自身を除く): 553789635

約数列:

[1, 3, 37, 111, 641, 1923, 20947, 23717, 62841, 71151, 775039, 2325117, 13427027, 40281081, 496799999, 1490399997]

約数ペア:

[(1, 1490399997), (3, 496799999), (37, 40281081), (111, 13427027), (641, 2325117), (1923, 775039), (20947, 71151), (23717, 62841)]