21681866

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{3347}}^1$

素因数の和:3469

約数の個数: 16

約数和(自身を含む): 33747840

約数和(自身を除く): 12065974

約数列:

[1, 2, 41, 79, 82, 158, 3239, 3347, 6478, 6694, 137227, 264413, 274454, 528826, 10840933, 21681866]

約数ペア:

[(1, 21681866), (2, 10840933), (41, 528826), (79, 274454), (82, 264413), (158, 137227), (3239, 6694), (3347, 6478)]