128512713

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{2351}}^1$

素因数の和:2517

約数の個数: 32

約数和(自身を含む): 207728640

約数和(自身を除く): 79215927

約数列:

[1, 3, 7, 19, 21, 57, 133, 137, 399, 411, 959, 2351, 2603, 2877, 7053, 7809, 16457, 18221, 44669, 49371, 54663, 134007, 312683, 322087, 938049, 966261, 2254609, 6119653, 6763827, 18358959, 42837571, 128512713]

約数ペア:

[(1, 128512713), (3, 42837571), (7, 18358959), (19, 6763827), (21, 6119653), (57, 2254609), (133, 966261), (137, 938049), (399, 322087), (411, 312683), (959, 134007), (2351, 54663), (2603, 49371), (2877, 44669), (7053, 18221), (7809, 16457)]