21074761

素因数分解:

${\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:312

約数の個数: 16

約数和(自身を含む): 22560768

約数和(自身を除く): 1486007

約数列:

[1, 31, 53, 101, 127, 1643, 3131, 3937, 5353, 6731, 12827, 165943, 208661, 397637, 679831, 21074761]

約数ペア:

[(1, 21074761), (31, 679831), (53, 397637), (101, 208661), (127, 165943), (1643, 12827), (3131, 6731), (3937, 5353)]