21969367

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{337}}^1$

素因数の和:550

約数の個数: 16

約数和(自身を含む): 25742080

約数和(自身を除く): 3772713

約数列:

[1, 7, 67, 139, 337, 469, 973, 2359, 9313, 22579, 46843, 65191, 158053, 327901, 3138481, 21969367]

約数ペア:

[(1, 21969367), (7, 3138481), (67, 327901), (139, 158053), (337, 65191), (469, 46843), (973, 22579), (2359, 9313)]