21891436798

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1231}}^1\times {\mathrm{3121}}^1$

素因数の和:4409

約数の個数: 64

約数和(自身を含む): 42093950976

約数和(自身を除く): 20202514178

約数列:

[1, 2, 7, 11, 14, 22, 37, 74, 77, 154, 259, 407, 518, 814, 1231, 2462, 2849, 3121, 5698, 6242, 8617, 13541, 17234, 21847, 27082, 34331, 43694, 45547, 68662, 91094, 94787, 115477, 189574, 230954, 240317, 318829, 480634, 501017, 637658, 808339, 1002034, 1270247, 1616678, 2540494, 3507119, 3841951, 7014238, 7683902, 8891729, 17783458, 26893657, 42261461, 53787314, 84522922, 142152187, 284304374, 295830227, 591660454, 995065309, 1563674057, 1990130618, 3127348114, 10945718399, 21891436798]

約数ペア:

[(1, 21891436798), (2, 10945718399), (7, 3127348114), (11, 1990130618), (14, 1563674057), (22, 995065309), (37, 591660454), (74, 295830227), (77, 284304374), (154, 142152187), (259, 84522922), (407, 53787314), (518, 42261461), (814, 26893657), (1231, 17783458), (2462, 8891729), (2849, 7683902), (3121, 7014238), (5698, 3841951), (6242, 3507119), (8617, 2540494), (13541, 1616678), (17234, 1270247), (21847, 1002034), (27082, 808339), (34331, 637658), (43694, 501017), (45547, 480634), (68662, 318829), (91094, 240317), (94787, 230954), (115477, 189574)]