257579421

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{3407}}^1$

素因数の和:3529

約数の個数: 32

約数和(自身を含む): 392601600

約数和(自身を除く): 135022179

約数列:

[1, 3, 11, 29, 33, 79, 87, 237, 319, 869, 957, 2291, 2607, 3407, 6873, 10221, 25201, 37477, 75603, 98803, 112431, 269153, 296409, 807459, 1086833, 2960683, 3260499, 7805437, 8882049, 23416311, 85859807, 257579421]

約数ペア:

[(1, 257579421), (3, 85859807), (11, 23416311), (29, 8882049), (33, 7805437), (79, 3260499), (87, 2960683), (237, 1086833), (319, 807459), (869, 296409), (957, 269153), (2291, 112431), (2607, 98803), (3407, 75603), (6873, 37477), (10221, 25201)]