28941913

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{997}}^1$

素因数の和:1057

約数の個数: 32

約数和(自身を含む): 40239360

約数和(自身を除く): 11297447

約数列:

[1, 7, 11, 13, 29, 77, 91, 143, 203, 319, 377, 997, 1001, 2233, 2639, 4147, 6979, 10967, 12961, 28913, 29029, 76769, 90727, 142571, 202391, 318043, 375869, 997997, 2226301, 2631083, 4134559, 28941913]

約数ペア:

[(1, 28941913), (7, 4134559), (11, 2631083), (13, 2226301), (29, 997997), (77, 375869), (91, 318043), (143, 202391), (203, 142571), (319, 90727), (377, 76769), (997, 29029), (1001, 28913), (2233, 12961), (2639, 10967), (4147, 6979)]