21516782

素因数分解:

$2^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:225

約数の個数: 48

約数和(自身を含む): 39767760

約数和(自身を除く): 18250978

約数列:

[1, 2, 7, 14, 29, 49, 58, 67, 98, 113, 134, 203, 226, 406, 469, 791, 938, 1421, 1582, 1943, 2842, 3277, 3283, 3886, 5537, 6554, 6566, 7571, 11074, 13601, 15142, 22939, 27202, 45878, 52997, 95207, 105994, 160573, 190414, 219559, 321146, 370979, 439118, 741958, 1536913, 3073826, 10758391, 21516782]

約数ペア:

[(1, 21516782), (2, 10758391), (7, 3073826), (14, 1536913), (29, 741958), (49, 439118), (58, 370979), (67, 321146), (98, 219559), (113, 190414), (134, 160573), (203, 105994), (226, 95207), (406, 52997), (469, 45878), (791, 27202), (938, 22939), (1421, 15142), (1582, 13601), (1943, 11074), (2842, 7571), (3277, 6566), (3283, 6554), (3886, 5537)]