21430328

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140989}}^1$

素因数の和:141014

約数の個数: 16

約数和(自身を含む): 42297000

約数和(自身を除く): 20866672

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140989, 281978, 563956, 1127912, 2678791, 5357582, 10715164, 21430328]

約数ペア:

[(1, 21430328), (2, 10715164), (4, 5357582), (8, 2678791), (19, 1127912), (38, 563956), (76, 281978), (152, 140989)]