156969688659

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{393407741}}^1$

素因数の和:393407770

約数の個数: 16

約数和(自身を含む): 251780954880

約数和(自身を除く): 94811266221

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 393407741, 1180223223, 2753854187, 7474747079, 8261562561, 22424241237, 52323229553, 156969688659]

約数ペア:

[(1, 156969688659), (3, 52323229553), (7, 22424241237), (19, 8261562561), (21, 7474747079), (57, 2753854187), (133, 1180223223), (399, 393407741)]