21873423

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{761}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 34820352

約数和(自身を除く): 12946929

約数列:

[1, 3, 11, 13, 33, 39, 67, 143, 201, 429, 737, 761, 871, 2211, 2283, 2613, 8371, 9581, 9893, 25113, 28743, 29679, 50987, 108823, 152961, 326469, 560857, 662831, 1682571, 1988493, 7291141, 21873423]

約数ペア:

[(1, 21873423), (3, 7291141), (11, 1988493), (13, 1682571), (33, 662831), (39, 560857), (67, 326469), (143, 152961), (201, 108823), (429, 50987), (737, 29679), (761, 28743), (871, 25113), (2211, 9893), (2283, 9581), (2613, 8371)]