18490078

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{991}}^1$

素因数の和:1503

約数の個数: 16

約数和(自身を含む): 29283840

約数和(自身を除く): 10793762

約数列:

[1, 2, 19, 38, 491, 982, 991, 1982, 9329, 18658, 18829, 37658, 486581, 973162, 9245039, 18490078]

約数ペア:

[(1, 18490078), (2, 9245039), (19, 973162), (38, 486581), (491, 37658), (982, 18829), (991, 18658), (1982, 9329)]