20986394

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73379}}^1$

素因数の和:73405

約数の個数: 16

約数和(自身を含む): 36983520

約数和(自身を除く): 15997126

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 73379, 146758, 807169, 953927, 1614338, 1907854, 10493197, 20986394]

約数ペア:

[(1, 20986394), (2, 10493197), (11, 1907854), (13, 1614338), (22, 953927), (26, 807169), (143, 146758), (286, 73379)]