21666349439

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1811}}^1\times {\mathrm{3911}}^1$

素因数の和:5771

約数の個数: 32

約数和(自身を含む): 27220008960

約数和(自身を除く): 5553659521

約数列:

[1, 7, 19, 23, 133, 161, 437, 1811, 3059, 3911, 12677, 27377, 34409, 41653, 74309, 89953, 240863, 291571, 520163, 629671, 791407, 1709107, 5539849, 7082821, 11963749, 49579747, 134573599, 162904883, 942015193, 1140334181, 3095192777, 21666349439]

約数ペア:

[(1, 21666349439), (7, 3095192777), (19, 1140334181), (23, 942015193), (133, 162904883), (161, 134573599), (437, 49579747), (1811, 11963749), (3059, 7082821), (3911, 5539849), (12677, 1709107), (27377, 791407), (34409, 629671), (41653, 520163), (74309, 291571), (89953, 240863)]