19001984

素因数分解:

$2^7\times {\mathrm{53}}^1\times {\mathrm{2801}}^1$

素因数の和:2868

約数の個数: 32

約数和(自身を含む): 38583540

約数和(自身を除く): 19581556

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 106, 128, 212, 424, 848, 1696, 2801, 3392, 5602, 6784, 11204, 22408, 44816, 89632, 148453, 179264, 296906, 358528, 593812, 1187624, 2375248, 4750496, 9500992, 19001984]

約数ペア:

[(1, 19001984), (2, 9500992), (4, 4750496), (8, 2375248), (16, 1187624), (32, 593812), (53, 358528), (64, 296906), (106, 179264), (128, 148453), (212, 89632), (424, 44816), (848, 22408), (1696, 11204), (2801, 6784), (3392, 5602)]