20744955

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5987}}^1$

素因数の和:6016

約数の個数: 48

約数和(自身を含む): 44838144

約数和(自身を除く): 24093189

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 5987, 17961, 29935, 41909, 53883, 65857, 89805, 125727, 197571, 209545, 269415, 329285, 377181, 460999, 592713, 628635, 987855, 1382997, 1885905, 2304995, 2963565, 4148991, 6914985, 20744955]

約数ペア:

[(1, 20744955), (3, 6914985), (5, 4148991), (7, 2963565), (9, 2304995), (11, 1885905), (15, 1382997), (21, 987855), (33, 628635), (35, 592713), (45, 460999), (55, 377181), (63, 329285), (77, 269415), (99, 209545), (105, 197571), (165, 125727), (231, 89805), (315, 65857), (385, 53883), (495, 41909), (693, 29935), (1155, 17961), (3465, 5987)]