19926335

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 30028320

約数和(自身を除く): 10101985

約数列:

[1, 5, 11, 13, 29, 31, 55, 65, 143, 145, 155, 319, 341, 377, 403, 715, 899, 961, 1595, 1705, 1885, 2015, 4147, 4433, 4495, 4805, 9889, 10571, 11687, 12493, 20735, 22165, 27869, 49445, 52855, 58435, 62465, 128557, 137423, 139345, 306559, 362297, 642785, 687115, 1532795, 1811485, 3985267, 19926335]

約数ペア:

[(1, 19926335), (5, 3985267), (11, 1811485), (13, 1532795), (29, 687115), (31, 642785), (55, 362297), (65, 306559), (143, 139345), (145, 137423), (155, 128557), (319, 62465), (341, 58435), (377, 52855), (403, 49445), (715, 27869), (899, 22165), (961, 20735), (1595, 12493), (1705, 11687), (1885, 10571), (2015, 9889), (4147, 4805), (4433, 4495)]