20870619

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12907}}^1$

素因数の和:12935

約数の個数: 24

約数和(自身を含む): 35316288

約数和(自身を除く): 14445669

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12907, 38721, 90349, 141977, 271047, 425931, 632443, 993839, 1897329, 2981517, 6956873, 20870619]

約数ペア:

[(1, 20870619), (3, 6956873), (7, 2981517), (11, 1897329), (21, 993839), (33, 632443), (49, 425931), (77, 271047), (147, 141977), (231, 90349), (539, 38721), (1617, 12907)]