28181986

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{307}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 49674240

約数和(自身を除く): 21492254

約数列:

[1, 2, 7, 14, 79, 83, 158, 166, 307, 553, 581, 614, 1106, 1162, 2149, 4298, 6557, 13114, 24253, 25481, 45899, 48506, 50962, 91798, 169771, 178367, 339542, 356734, 2012999, 4025998, 14090993, 28181986]

約数ペア:

[(1, 28181986), (2, 14090993), (7, 4025998), (14, 2012999), (79, 356734), (83, 339542), (158, 178367), (166, 169771), (307, 91798), (553, 50962), (581, 48506), (614, 45899), (1106, 25481), (1162, 24253), (2149, 13114), (4298, 6557)]