19403989

素因数分解:

${\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{401}}^1$

素因数の和:548

約数の個数: 16

約数和(自身を含む): 21881664

約数和(自身を除く): 2477675

約数列:

[1, 11, 53, 83, 401, 583, 913, 4399, 4411, 21253, 33283, 48389, 233783, 366113, 1763999, 19403989]

約数ペア:

[(1, 19403989), (11, 1763999), (53, 366113), (83, 233783), (401, 48389), (583, 33283), (913, 21253), (4399, 4411)]