198617961

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 283143168

約数和(自身を除く): 84525207

約数列:

[1, 3, 31, 37, 93, 111, 197, 293, 591, 879, 1147, 3441, 6107, 7289, 9083, 10841, 18321, 21867, 27249, 32523, 57721, 173163, 225959, 336071, 677877, 1008213, 1789351, 2135677, 5368053, 6407031, 66205987, 198617961]

約数ペア:

[(1, 198617961), (3, 66205987), (31, 6407031), (37, 5368053), (93, 2135677), (111, 1789351), (197, 1008213), (293, 677877), (591, 336071), (879, 225959), (1147, 173163), (3441, 57721), (6107, 32523), (7289, 27249), (9083, 21867), (10841, 18321)]