21006156964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{642233}}^1$

素因数の和:642304

約数の個数: 48

約数和(自身を含む): 43050229488

約数和(自身を除く): 22044072524

約数列:

[1, 2, 4, 13, 17, 26, 34, 37, 52, 68, 74, 148, 221, 442, 481, 629, 884, 962, 1258, 1924, 2516, 8177, 16354, 32708, 642233, 1284466, 2568932, 8349029, 10917961, 16698058, 21835922, 23762621, 33396116, 43671844, 47525242, 95050484, 141933493, 283866986, 308914073, 403964557, 567733972, 617828146, 807929114, 1235656292, 1615858228, 5251539241, 10503078482, 21006156964]

約数ペア:

[(1, 21006156964), (2, 10503078482), (4, 5251539241), (13, 1615858228), (17, 1235656292), (26, 807929114), (34, 617828146), (37, 567733972), (52, 403964557), (68, 308914073), (74, 283866986), (148, 141933493), (221, 95050484), (442, 47525242), (481, 43671844), (629, 33396116), (884, 23762621), (962, 21835922), (1258, 16698058), (1924, 10917961), (2516, 8349029), (8177, 2568932), (16354, 1284466), (32708, 642233)]