18645878

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{6911}}^1$

素因数の和:7003

約数の個数: 16

約数和(自身を含む): 29859840

約数和(自身を除く): 11213962

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 6911, 13822, 131309, 262618, 490681, 981362, 9322939, 18645878]

約数ペア:

[(1, 18645878), (2, 9322939), (19, 981362), (38, 490681), (71, 262618), (142, 131309), (1349, 13822), (2698, 6911)]