20023245

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2129}}^1$

素因数の和:2170

約数の個数: 48

約数和(自身を含む): 39873600

約数和(自身を除く): 19850355

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 165, 171, 209, 285, 495, 627, 855, 1045, 1881, 2129, 3135, 6387, 9405, 10645, 19161, 23419, 31935, 40451, 70257, 95805, 117095, 121353, 202255, 210771, 351285, 364059, 444961, 606765, 1053855, 1334883, 1820295, 2224805, 4004649, 6674415, 20023245]

約数ペア:

[(1, 20023245), (3, 6674415), (5, 4004649), (9, 2224805), (11, 1820295), (15, 1334883), (19, 1053855), (33, 606765), (45, 444961), (55, 364059), (57, 351285), (95, 210771), (99, 202255), (165, 121353), (171, 117095), (209, 95805), (285, 70257), (495, 40451), (627, 31935), (855, 23419), (1045, 19161), (1881, 10645), (2129, 9405), (3135, 6387)]