20473887

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{97}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 34684160

約数和(自身を除く): 14210273

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 97, 133, 161, 291, 399, 437, 483, 529, 679, 1311, 1587, 1843, 2037, 2231, 3059, 3703, 5529, 6693, 9177, 10051, 11109, 12901, 15617, 30153, 38703, 42389, 46851, 51313, 70357, 127167, 153939, 211071, 296723, 359191, 890169, 974947, 1077573, 2924841, 6824629, 20473887]

約数ペア:

[(1, 20473887), (3, 6824629), (7, 2924841), (19, 1077573), (21, 974947), (23, 890169), (57, 359191), (69, 296723), (97, 211071), (133, 153939), (161, 127167), (291, 70357), (399, 51313), (437, 46851), (483, 42389), (529, 38703), (679, 30153), (1311, 15617), (1587, 12901), (1843, 11109), (2037, 10051), (2231, 9177), (3059, 6693), (3703, 5529)]