28198786

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2579}}^1$

素因数の和:2670

約数の個数: 32

約数和(自身を含む): 53498880

約数和(自身を除く): 25300094

約数列:

[1, 2, 7, 11, 14, 22, 71, 77, 142, 154, 497, 781, 994, 1562, 2579, 5158, 5467, 10934, 18053, 28369, 36106, 56738, 183109, 198583, 366218, 397166, 1281763, 2014199, 2563526, 4028398, 14099393, 28198786]

約数ペア:

[(1, 28198786), (2, 14099393), (7, 4028398), (11, 2563526), (14, 2014199), (22, 1281763), (71, 397166), (77, 366218), (142, 198583), (154, 183109), (497, 56738), (781, 36106), (994, 28369), (1562, 18053), (2579, 10934), (5158, 5467)]