21338746

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{74611}}^1$

素因数の和:74637

約数の個数: 16

約数和(自身を含む): 37604448

約数和(自身を除く): 16265702

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 74611, 149222, 820721, 969943, 1641442, 1939886, 10669373, 21338746]

約数ペア:

[(1, 21338746), (2, 10669373), (11, 1939886), (13, 1641442), (22, 969943), (26, 820721), (143, 149222), (286, 74611)]