21099638

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21227}}^1$

素因数の和:21307

約数の個数: 16

約数和(自身を含む): 36681984

約数和(自身を除く): 15582346

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 21227, 42454, 148589, 297178, 1507117, 3014234, 10549819, 21099638]

約数ペア:

[(1, 21099638), (2, 10549819), (7, 3014234), (14, 1507117), (71, 297178), (142, 148589), (497, 42454), (994, 21227)]