225401771

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 278553600

約数和(自身を除く): 53151829

約数列:

[1, 7, 23, 59, 61, 161, 389, 413, 427, 1357, 1403, 2723, 3599, 8947, 9499, 9821, 22951, 23729, 25193, 62629, 82777, 160657, 166103, 527873, 545767, 579439, 1400011, 3695111, 3820369, 9800077, 32200253, 225401771]

約数ペア:

[(1, 225401771), (7, 32200253), (23, 9800077), (59, 3820369), (61, 3695111), (161, 1400011), (389, 579439), (413, 545767), (427, 527873), (1357, 166103), (1403, 160657), (2723, 82777), (3599, 62629), (8947, 25193), (9499, 23729), (9821, 22951)]