21012010

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23609}}^1$

素因数の和:23705

約数の個数: 16

約数和(自身を含む): 38248200

約数和(自身を除く): 17236190

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 23609, 47218, 118045, 236090, 2101201, 4202402, 10506005, 21012010]

約数ペア:

[(1, 21012010), (2, 10506005), (5, 4202402), (10, 2101201), (89, 236090), (178, 118045), (445, 47218), (890, 23609)]