20388786

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 47692800

約数和(自身を除く): 27304014

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 38, 57, 66, 71, 114, 142, 209, 213, 229, 418, 426, 458, 627, 687, 781, 1254, 1349, 1374, 1562, 2343, 2519, 2698, 4047, 4351, 4686, 5038, 7557, 8094, 8702, 13053, 14839, 15114, 16259, 26106, 29678, 32518, 44517, 47861, 48777, 89034, 95722, 97554, 143583, 178849, 287166, 308921, 357698, 536547, 617842, 926763, 1073094, 1853526, 3398131, 6796262, 10194393, 20388786]

約数ペア:

[(1, 20388786), (2, 10194393), (3, 6796262), (6, 3398131), (11, 1853526), (19, 1073094), (22, 926763), (33, 617842), (38, 536547), (57, 357698), (66, 308921), (71, 287166), (114, 178849), (142, 143583), (209, 97554), (213, 95722), (229, 89034), (418, 48777), (426, 47861), (458, 44517), (627, 32518), (687, 29678), (781, 26106), (1254, 16259), (1349, 15114), (1374, 14839), (1562, 13053), (2343, 8702), (2519, 8094), (2698, 7557), (4047, 5038), (4351, 4686)]