21032613

素因数分解:

$3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1289}}^1$

素因数の和:1346

約数の個数: 36

約数和(自身を含む): 36323820

約数和(自身を除く): 15291207

約数列:

[1, 3, 7, 9, 21, 37, 49, 63, 111, 147, 259, 333, 441, 777, 1289, 1813, 2331, 3867, 5439, 9023, 11601, 16317, 27069, 47693, 63161, 81207, 143079, 189483, 333851, 429237, 568449, 1001553, 2336957, 3004659, 7010871, 21032613]

約数ペア:

[(1, 21032613), (3, 7010871), (7, 3004659), (9, 2336957), (21, 1001553), (37, 568449), (49, 429237), (63, 333851), (111, 189483), (147, 143079), (259, 81207), (333, 63161), (441, 47693), (777, 27069), (1289, 16317), (1813, 11601), (2331, 9023), (3867, 5439)]