21408274

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1\times {\mathrm{659}}^1$

素因数の和:1137

約数の個数: 16

約数和(自身を含む): 33105600

約数和(自身を除く): 11697326

約数列:

[1, 2, 37, 74, 439, 659, 878, 1318, 16243, 24383, 32486, 48766, 289301, 578602, 10704137, 21408274]

約数ペア:

[(1, 21408274), (2, 10704137), (37, 578602), (74, 289301), (439, 48766), (659, 32486), (878, 24383), (1318, 16243)]