19971350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1327}}^1$

素因数の和:1389

約数の個数: 48

約数和(自身を含む): 43473408

約数和(自身を除く): 23502058

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 43, 50, 70, 86, 175, 215, 301, 350, 430, 602, 1075, 1327, 1505, 2150, 2654, 3010, 6635, 7525, 9289, 13270, 15050, 18578, 33175, 46445, 57061, 66350, 92890, 114122, 232225, 285305, 399427, 464450, 570610, 798854, 1426525, 1997135, 2853050, 3994270, 9985675, 19971350]

約数ペア:

[(1, 19971350), (2, 9985675), (5, 3994270), (7, 2853050), (10, 1997135), (14, 1426525), (25, 798854), (35, 570610), (43, 464450), (50, 399427), (70, 285305), (86, 232225), (175, 114122), (215, 92890), (301, 66350), (350, 57061), (430, 46445), (602, 33175), (1075, 18578), (1327, 15050), (1505, 13270), (2150, 9289), (2654, 7525), (3010, 6635)]