21028141

素因数分解:

${\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:336

約数の個数: 16

約数和(自身を含む): 22671360

約数和(自身を除く): 1643219

約数列:

[1, 23, 71, 79, 163, 1633, 1817, 3749, 5609, 11573, 12877, 129007, 266179, 296171, 914267, 21028141]

約数ペア:

[(1, 21028141), (23, 914267), (71, 296171), (79, 266179), (163, 129007), (1633, 12877), (1817, 11573), (3749, 5609)]