19489496

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2797}}^1$

素因数の和:2883

約数の個数: 32

約数和(自身を含む): 39955440

約数和(自身を除く): 20465944

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 104, 134, 268, 536, 871, 1742, 2797, 3484, 5594, 6968, 11188, 22376, 36361, 72722, 145444, 187399, 290888, 374798, 749596, 1499192, 2436187, 4872374, 9744748, 19489496]

約数ペア:

[(1, 19489496), (2, 9744748), (4, 4872374), (8, 2436187), (13, 1499192), (26, 749596), (52, 374798), (67, 290888), (104, 187399), (134, 145444), (268, 72722), (536, 36361), (871, 22376), (1742, 11188), (2797, 6968), (3484, 5594)]