20187789

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^2$

素因数の和:277

約数の個数: 24

約数和(自身を含む): 29682432

約数和(自身を除く): 9494643

約数列:

[1, 3, 17, 31, 51, 93, 113, 339, 527, 1581, 1921, 3503, 5763, 10509, 12769, 38307, 59551, 178653, 217073, 395839, 651219, 1187517, 6729263, 20187789]

約数ペア:

[(1, 20187789), (3, 6729263), (17, 1187517), (31, 651219), (51, 395839), (93, 217073), (113, 178653), (339, 59551), (527, 38307), (1581, 12769), (1921, 10509), (3503, 5763)]