20876990

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{25153}}^1$

素因数の和:25243

約数の個数: 16

約数和(自身を含む): 38032848

約数和(自身を除く): 17155858

約数列:

[1, 2, 5, 10, 83, 166, 415, 830, 25153, 50306, 125765, 251530, 2087699, 4175398, 10438495, 20876990]

約数ペア:

[(1, 20876990), (2, 10438495), (5, 4175398), (10, 2087699), (83, 251530), (166, 125765), (415, 50306), (830, 25153)]