19976775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2927}}^1$

素因数の和:2960

約数の個数: 48

約数和(自身を含む): 40664064

約数和(自身を除く): 20687289

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 175, 195, 273, 325, 455, 525, 975, 1365, 2275, 2927, 6825, 8781, 14635, 20489, 38051, 43905, 61467, 73175, 102445, 114153, 190255, 219525, 266357, 307335, 512225, 570765, 799071, 951275, 1331785, 1536675, 2853825, 3995355, 6658925, 19976775]

約数ペア:

[(1, 19976775), (3, 6658925), (5, 3995355), (7, 2853825), (13, 1536675), (15, 1331785), (21, 951275), (25, 799071), (35, 570765), (39, 512225), (65, 307335), (75, 266357), (91, 219525), (105, 190255), (175, 114153), (195, 102445), (273, 73175), (325, 61467), (455, 43905), (525, 38051), (975, 20489), (1365, 14635), (2275, 8781), (2927, 6825)]