21239810

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{92347}}^1$

素因数の和:92377

約数の個数: 16

約数和(自身を含む): 39894336

約数和(自身を除く): 18654526

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 92347, 184694, 461735, 923470, 2123981, 4247962, 10619905, 21239810]

約数ペア:

[(1, 21239810), (2, 10619905), (5, 4247962), (10, 2123981), (23, 923470), (46, 461735), (115, 184694), (230, 92347)]