21101090

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{25423}}^1$

素因数の和:25513

約数の個数: 16

約数和(自身を含む): 38441088

約数和(自身を除く): 17339998

約数列:

[1, 2, 5, 10, 83, 166, 415, 830, 25423, 50846, 127115, 254230, 2110109, 4220218, 10550545, 21101090]

約数ペア:

[(1, 21101090), (2, 10550545), (5, 4220218), (10, 2110109), (83, 254230), (166, 127115), (415, 50846), (830, 25423)]