21730485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{593}}^1$

素因数の和:957

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 18186315

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 349, 593, 1047, 1745, 1779, 2443, 2965, 4151, 5235, 7329, 8895, 12215, 12453, 20755, 36645, 62265, 206957, 620871, 1034785, 1448699, 3104355, 4346097, 7243495, 21730485]

約数ペア:

[(1, 21730485), (3, 7243495), (5, 4346097), (7, 3104355), (15, 1448699), (21, 1034785), (35, 620871), (105, 206957), (349, 62265), (593, 36645), (1047, 20755), (1745, 12453), (1779, 12215), (2443, 8895), (2965, 7329), (4151, 5235)]