21799785

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1087}}^1$

素因数の和:1293

約数の個数: 32

約数和(自身を含む): 40108032

約数和(自身を除く): 18308247

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 191, 573, 955, 1087, 1337, 2865, 3261, 4011, 5435, 6685, 7609, 16305, 20055, 22827, 38045, 114135, 207617, 622851, 1038085, 1453319, 3114255, 4359957, 7266595, 21799785]

約数ペア:

[(1, 21799785), (3, 7266595), (5, 4359957), (7, 3114255), (15, 1453319), (21, 1038085), (35, 622851), (105, 207617), (191, 114135), (573, 38045), (955, 22827), (1087, 20055), (1337, 16305), (2865, 7609), (3261, 6685), (4011, 5435)]