13215579

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 20772864

約数和(自身を除く): 7557285

約数列:

[1, 3, 13, 17, 31, 39, 51, 93, 221, 403, 527, 643, 663, 1209, 1581, 1929, 6851, 8359, 10931, 19933, 20553, 25077, 32793, 59799, 142103, 259129, 338861, 426309, 777387, 1016583, 4405193, 13215579]

約数ペア:

[(1, 13215579), (3, 4405193), (13, 1016583), (17, 777387), (31, 426309), (39, 338861), (51, 259129), (93, 142103), (221, 59799), (403, 32793), (527, 25077), (643, 20553), (663, 19933), (1209, 10931), (1581, 8359), (1929, 6851)]