81971297947

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{241}}^1\times {\mathrm{74869}}^1$

素因数の和:75187

約数の個数: 32

約数和(自身を含む): 104362790400

約数和(自身を除く): 22391492453

約数列:

[1, 7, 11, 59, 77, 241, 413, 649, 1687, 2651, 4543, 14219, 18557, 74869, 99533, 156409, 524083, 823559, 1094863, 4417271, 5764913, 18043429, 30920897, 48589981, 126304003, 198477719, 340129867, 1064562311, 1389344033, 7451936177, 11710185421, 81971297947]

約数ペア:

[(1, 81971297947), (7, 11710185421), (11, 7451936177), (59, 1389344033), (77, 1064562311), (241, 340129867), (413, 198477719), (649, 126304003), (1687, 48589981), (2651, 30920897), (4543, 18043429), (14219, 5764913), (18557, 4417271), (74869, 1094863), (99533, 823559), (156409, 524083)]