28251153

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 51179520

約数和(自身を除く): 22928367

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 67, 69, 97, 161, 189, 201, 207, 291, 469, 483, 603, 621, 679, 873, 1407, 1449, 1541, 1809, 2037, 2231, 2619, 4221, 4347, 4623, 6111, 6499, 6693, 10787, 12663, 13869, 15617, 18333, 19497, 20079, 32361, 41607, 45493, 46851, 58491, 60237, 97083, 136479, 140553, 149477, 175473, 291249, 409437, 421659, 448431, 1046339, 1228311, 1345293, 3139017, 4035879, 9417051, 28251153]

約数ペア:

[(1, 28251153), (3, 9417051), (7, 4035879), (9, 3139017), (21, 1345293), (23, 1228311), (27, 1046339), (63, 448431), (67, 421659), (69, 409437), (97, 291249), (161, 175473), (189, 149477), (201, 140553), (207, 136479), (291, 97083), (469, 60237), (483, 58491), (603, 46851), (621, 45493), (679, 41607), (873, 32361), (1407, 20079), (1449, 19497), (1541, 18333), (1809, 15617), (2037, 13869), (2231, 12663), (2619, 10787), (4221, 6693), (4347, 6499), (4623, 6111)]