20529873

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3581}}^1$

素因数の和:3614

約数の個数: 36

約数和(自身を含む): 37159668

約数和(自身を除く): 16629795

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 3581, 5733, 10743, 25067, 32229, 46553, 75201, 139659, 175469, 225603, 325871, 418977, 526407, 977613, 1579221, 2281097, 2932839, 6843291, 20529873]

約数ペア:

[(1, 20529873), (3, 6843291), (7, 2932839), (9, 2281097), (13, 1579221), (21, 977613), (39, 526407), (49, 418977), (63, 325871), (91, 225603), (117, 175469), (147, 139659), (273, 75201), (441, 46553), (637, 32229), (819, 25067), (1911, 10743), (3581, 5733)]