19479997155

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1\times {\mathrm{1637}}^1$

素因数の和:1996

約数の個数: 64

約数和(自身を含む): 32596881408

約数和(自身を除く): 13116884253

約数列:

[1, 3, 5, 15, 31, 93, 155, 157, 163, 465, 471, 489, 785, 815, 1637, 2355, 2445, 4867, 4911, 5053, 8185, 14601, 15159, 24335, 24555, 25265, 25591, 50747, 73005, 75795, 76773, 127955, 152241, 253735, 257009, 266831, 383865, 761205, 771027, 793321, 800493, 1285045, 1334155, 2379963, 3855135, 3966605, 4002465, 7967279, 8271761, 11899815, 23901837, 24815283, 39836395, 41358805, 41892467, 119509185, 124076415, 125677401, 209462335, 628387005, 1298666477, 3895999431, 6493332385, 19479997155]

約数ペア:

[(1, 19479997155), (3, 6493332385), (5, 3895999431), (15, 1298666477), (31, 628387005), (93, 209462335), (155, 125677401), (157, 124076415), (163, 119509185), (465, 41892467), (471, 41358805), (489, 39836395), (785, 24815283), (815, 23901837), (1637, 11899815), (2355, 8271761), (2445, 7967279), (4867, 4002465), (4911, 3966605), (5053, 3855135), (8185, 2379963), (14601, 1334155), (15159, 1285045), (24335, 800493), (24555, 793321), (25265, 771027), (25591, 761205), (50747, 383865), (73005, 266831), (75795, 257009), (76773, 253735), (127955, 152241)]