21844305

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2237}}^1$

素因数の和:2286

約数の個数: 48

約数和(自身を含む): 44688384

約数和(自身を除く): 22844079

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 2237, 3255, 6711, 9765, 11185, 15659, 20133, 33555, 46977, 69347, 78295, 100665, 140931, 208041, 234885, 346735, 485429, 624123, 704655, 1040205, 1456287, 2427145, 3120615, 4368861, 7281435, 21844305]

約数ペア:

[(1, 21844305), (3, 7281435), (5, 4368861), (7, 3120615), (9, 2427145), (15, 1456287), (21, 1040205), (31, 704655), (35, 624123), (45, 485429), (63, 346735), (93, 234885), (105, 208041), (155, 140931), (217, 100665), (279, 78295), (315, 69347), (465, 46977), (651, 33555), (1085, 20133), (1395, 15659), (1953, 11185), (2237, 9765), (3255, 6711)]