21586796

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{643}}^1$

素因数の和:774

約数の個数: 48

約数和(自身を含む): 47604480

約数和(自身を除く): 26017684

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 109, 154, 218, 308, 436, 643, 763, 1199, 1286, 1526, 2398, 2572, 3052, 4501, 4796, 7073, 8393, 9002, 14146, 16786, 18004, 28292, 33572, 49511, 70087, 99022, 140174, 198044, 280348, 490609, 770957, 981218, 1541914, 1962436, 3083828, 5396699, 10793398, 21586796]

約数ペア:

[(1, 21586796), (2, 10793398), (4, 5396699), (7, 3083828), (11, 1962436), (14, 1541914), (22, 981218), (28, 770957), (44, 490609), (77, 280348), (109, 198044), (154, 140174), (218, 99022), (308, 70087), (436, 49511), (643, 33572), (763, 28292), (1199, 18004), (1286, 16786), (1526, 14146), (2398, 9002), (2572, 8393), (3052, 7073), (4501, 4796)]