20195571

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 10908429

約数列:

[1, 3, 11, 29, 33, 47, 87, 141, 319, 449, 517, 957, 1347, 1363, 1551, 4089, 4939, 13021, 14817, 14993, 21103, 39063, 44979, 63309, 143231, 232133, 429693, 611987, 696399, 1835961, 6731857, 20195571]

約数ペア:

[(1, 20195571), (3, 6731857), (11, 1835961), (29, 696399), (33, 611987), (47, 429693), (87, 232133), (141, 143231), (319, 63309), (449, 44979), (517, 39063), (957, 21103), (1347, 14993), (1363, 14817), (1551, 13021), (4089, 4939)]