20377617

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{1303}}^1$

素因数の和:1720

約数の個数: 16

約数和(自身を含む): 29355648

約数和(自身を除く): 8978031

約数列:

[1, 3, 13, 39, 401, 1203, 1303, 3909, 5213, 15639, 16939, 50817, 522503, 1567509, 6792539, 20377617]

約数ペア:

[(1, 20377617), (3, 6792539), (13, 1567509), (39, 522503), (401, 50817), (1203, 16939), (1303, 15639), (3909, 5213)]