18991216414

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{53}}^2\times {\mathrm{177917}}^1$

素因数の和:178044

約数の個数: 24

約数和(自身を含む): 30562754040

約数和(自身を除く): 11571537626

約数列:

[1, 2, 19, 38, 53, 106, 1007, 2014, 2809, 5618, 53371, 106742, 177917, 355834, 3380423, 6760846, 9429601, 18859202, 179162419, 358324838, 499768853, 999537706, 9495608207, 18991216414]

約数ペア:

[(1, 18991216414), (2, 9495608207), (19, 999537706), (38, 499768853), (53, 358324838), (106, 179162419), (1007, 18859202), (2014, 9429601), (2809, 6760846), (5618, 3380423), (53371, 355834), (106742, 177917)]