19128519

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 31299840

約数和(自身を除く): 12171321

約数列:

[1, 3, 9, 17, 31, 37, 51, 93, 109, 111, 153, 279, 327, 333, 527, 629, 981, 1147, 1581, 1853, 1887, 3379, 3441, 4033, 4743, 5559, 5661, 10137, 10323, 12099, 16677, 19499, 30411, 36297, 57443, 58497, 68561, 125023, 172329, 175491, 205683, 375069, 516987, 617049, 1125207, 2125391, 6376173, 19128519]

約数ペア:

[(1, 19128519), (3, 6376173), (9, 2125391), (17, 1125207), (31, 617049), (37, 516987), (51, 375069), (93, 205683), (109, 175491), (111, 172329), (153, 125023), (279, 68561), (327, 58497), (333, 57443), (527, 36297), (629, 30411), (981, 19499), (1147, 16677), (1581, 12099), (1853, 10323), (1887, 10137), (3379, 5661), (3441, 5559), (4033, 4743)]