19984305

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3907}}^1$

素因数の和:3957

約数の個数: 32

約数和(自身を含む): 36016128

約数和(自身を除く): 16031823

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 3907, 5115, 11721, 19535, 42977, 58605, 121117, 128931, 214885, 363351, 605585, 644655, 1332287, 1816755, 3996861, 6661435, 19984305]

約数ペア:

[(1, 19984305), (3, 6661435), (5, 3996861), (11, 1816755), (15, 1332287), (31, 644655), (33, 605585), (55, 363351), (93, 214885), (155, 128931), (165, 121117), (341, 58605), (465, 42977), (1023, 19535), (1705, 11721), (3907, 5115)]