28380903

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 41091072

約数和(自身を除く): 12710169

約数列:

[1, 3, 31, 43, 47, 93, 129, 141, 151, 453, 1333, 1457, 2021, 3999, 4371, 4681, 6063, 6493, 7097, 14043, 19479, 21291, 62651, 187953, 201283, 220007, 305171, 603849, 660021, 915513, 9460301, 28380903]

約数ペア:

[(1, 28380903), (3, 9460301), (31, 915513), (43, 660021), (47, 603849), (93, 305171), (129, 220007), (141, 201283), (151, 187953), (453, 62651), (1333, 21291), (1457, 19479), (2021, 14043), (3999, 7097), (4371, 6493), (4681, 6063)]