221570643

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{7741}}^1$

素因数の和:7827

約数の個数: 32

約数和(自身を含む): 356751360

約数和(自身を除く): 135180717

約数列:

[1, 3, 7, 21, 29, 47, 87, 141, 203, 329, 609, 987, 1363, 4089, 7741, 9541, 23223, 28623, 54187, 162561, 224489, 363827, 673467, 1091481, 1571423, 2546789, 4714269, 7640367, 10550983, 31652949, 73856881, 221570643]

約数ペア:

[(1, 221570643), (3, 73856881), (7, 31652949), (21, 10550983), (29, 7640367), (47, 4714269), (87, 2546789), (141, 1571423), (203, 1091481), (329, 673467), (609, 363827), (987, 224489), (1363, 162561), (4089, 54187), (7741, 28623), (9541, 23223)]