20768097

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 32834560

約数和(自身を除く): 12066463

約数列:

[1, 3, 7, 21, 43, 109, 129, 211, 301, 327, 633, 763, 903, 1477, 2289, 4431, 4687, 9073, 14061, 22999, 27219, 32809, 63511, 68997, 98427, 160993, 190533, 482979, 988957, 2966871, 6922699, 20768097]

約数ペア:

[(1, 20768097), (3, 6922699), (7, 2966871), (21, 988957), (43, 482979), (109, 190533), (129, 160993), (211, 98427), (301, 68997), (327, 63511), (633, 32809), (763, 27219), (903, 22999), (1477, 14061), (2289, 9073), (4431, 4687)]