20905687

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{607}}^1$

素因数の和:750

約数の個数: 16

約数和(自身を含む): 23814144

約数和(自身を除く): 2908457

約数列:

[1, 11, 31, 101, 341, 607, 1111, 3131, 6677, 18817, 34441, 61307, 206987, 674377, 1900517, 20905687]

約数ペア:

[(1, 20905687), (11, 1900517), (31, 674377), (101, 206987), (341, 61307), (607, 34441), (1111, 18817), (3131, 6677)]