20528035187

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1\times {\mathrm{3947}}^1$

素因数の和:4379

約数の個数: 32

約数和(自身を含む): 23827474944

約数和(自身を除く): 3299439757

約数列:

[1, 11, 23, 61, 253, 337, 671, 1403, 3707, 3947, 7751, 15433, 20557, 43417, 85261, 90781, 226127, 240767, 472811, 998591, 1330139, 2648437, 5200921, 5537641, 14631529, 30593197, 60914051, 81138479, 336525167, 892523269, 1866185017, 20528035187]

約数ペア:

[(1, 20528035187), (11, 1866185017), (23, 892523269), (61, 336525167), (253, 81138479), (337, 60914051), (671, 30593197), (1403, 14631529), (3707, 5537641), (3947, 5200921), (7751, 2648437), (15433, 1330139), (20557, 998591), (43417, 472811), (85261, 240767), (90781, 226127)]