25212187

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 34352640

約数和(自身を除く): 9140453

約数列:

[1, 7, 11, 13, 77, 89, 91, 143, 283, 623, 979, 1001, 1157, 1981, 3113, 3679, 6853, 8099, 12727, 21791, 25187, 25753, 40469, 89089, 176309, 277057, 283283, 327431, 1939399, 2292017, 3601741, 25212187]

約数ペア:

[(1, 25212187), (7, 3601741), (11, 2292017), (13, 1939399), (77, 327431), (89, 283283), (91, 277057), (143, 176309), (283, 89089), (623, 40469), (979, 25753), (1001, 25187), (1157, 21791), (1981, 12727), (3113, 8099), (3679, 6853)]