20125413

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 36706176

約数和(自身を除く): 16580763

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 113, 231, 257, 339, 693, 771, 791, 1017, 1243, 1799, 2313, 2373, 2827, 3729, 5397, 7119, 8481, 8701, 11187, 16191, 19789, 25443, 26103, 29041, 59367, 78309, 87123, 178101, 203287, 261369, 319451, 609861, 958353, 1829583, 2236157, 2875059, 6708471, 20125413]

約数ペア:

[(1, 20125413), (3, 6708471), (7, 2875059), (9, 2236157), (11, 1829583), (21, 958353), (33, 609861), (63, 319451), (77, 261369), (99, 203287), (113, 178101), (231, 87123), (257, 78309), (339, 59367), (693, 29041), (771, 26103), (791, 25443), (1017, 19789), (1243, 16191), (1799, 11187), (2313, 8701), (2373, 8481), (2827, 7119), (3729, 5397)]