289407723

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{2801}}^1$

素因数の和:2947

約数の個数: 32

約数和(自身を含む): 438994944

約数和(自身を除く): 149587221

約数列:

[1, 3, 11, 31, 33, 93, 101, 303, 341, 1023, 1111, 2801, 3131, 3333, 8403, 9393, 30811, 34441, 86831, 92433, 103323, 260493, 282901, 848703, 955141, 2865423, 3111911, 8769931, 9335733, 26309793, 96469241, 289407723]

約数ペア:

[(1, 289407723), (3, 96469241), (11, 26309793), (31, 9335733), (33, 8769931), (93, 3111911), (101, 2865423), (303, 955141), (341, 848703), (1023, 282901), (1111, 260493), (2801, 103323), (3131, 92433), (3333, 86831), (8403, 34441), (9393, 30811)]