12891109

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 17418240

約数和(自身を除く): 4527131

約数列:

[1, 7, 11, 23, 29, 77, 161, 203, 251, 253, 319, 667, 1757, 1771, 2233, 2761, 4669, 5773, 7279, 7337, 19327, 40411, 50953, 51359, 63503, 80069, 167417, 444521, 560483, 1171919, 1841587, 12891109]

約数ペア:

[(1, 12891109), (7, 1841587), (11, 1171919), (23, 560483), (29, 444521), (77, 167417), (161, 80069), (203, 63503), (251, 51359), (253, 50953), (319, 40411), (667, 19327), (1757, 7337), (1771, 7279), (2233, 5773), (2761, 4669)]