21309230

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{30013}}^1$

素因数の和:30091

約数の個数: 16

約数和(自身を含む): 38898144

約数和(自身を除く): 17588914

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 30013, 60026, 150065, 300130, 2130923, 4261846, 10654615, 21309230]

約数ペア:

[(1, 21309230), (2, 10654615), (5, 4261846), (10, 2130923), (71, 300130), (142, 150065), (355, 60026), (710, 30013)]