20915323

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:187

約数の個数: 32

約数和(自身を含む): 26046720

約数和(自身を除く): 5131397

約数列:

[1, 11, 13, 37, 59, 67, 143, 407, 481, 649, 737, 767, 871, 2183, 2479, 3953, 5291, 8437, 9581, 24013, 27269, 28379, 32227, 43483, 51389, 146261, 312169, 354497, 565279, 1608871, 1901393, 20915323]

約数ペア:

[(1, 20915323), (11, 1901393), (13, 1608871), (37, 565279), (59, 354497), (67, 312169), (143, 146261), (407, 51389), (481, 43483), (649, 32227), (737, 28379), (767, 27269), (871, 24013), (2183, 9581), (2479, 8437), (3953, 5291)]