19864438

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{541}}^1\times {\mathrm{1669}}^1$

素因数の和:2223

約数の個数: 16

約数和(自身を含む): 32585040

約数和(自身を除く): 12720602

約数列:

[1, 2, 11, 22, 541, 1082, 1669, 3338, 5951, 11902, 18359, 36718, 902929, 1805858, 9932219, 19864438]

約数ペア:

[(1, 19864438), (2, 9932219), (11, 1805858), (22, 902929), (541, 36718), (1082, 18359), (1669, 11902), (3338, 5951)]