18977884

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{3727}}^1$

素因数の和:3817

約数の個数: 24

約数和(自身を含む): 35490560

約数和(自身を除く): 16512676

約数列:

[1, 2, 4, 19, 38, 67, 76, 134, 268, 1273, 2546, 3727, 5092, 7454, 14908, 70813, 141626, 249709, 283252, 499418, 998836, 4744471, 9488942, 18977884]

約数ペア:

[(1, 18977884), (2, 9488942), (4, 4744471), (19, 998836), (38, 499418), (67, 283252), (76, 249709), (134, 141626), (268, 70813), (1273, 14908), (2546, 7454), (3727, 5092)]