28748223

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4111}}^1$

素因数の和:4164

約数の個数: 32

約数和(自身を含む): 50001920

約数和(自身を除く): 21253697

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 259, 333, 777, 999, 2331, 4111, 6993, 12333, 28777, 36999, 86331, 110997, 152107, 258993, 456321, 776979, 1064749, 1368963, 3194247, 4106889, 9582741, 28748223]

約数ペア:

[(1, 28748223), (3, 9582741), (7, 4106889), (9, 3194247), (21, 1368963), (27, 1064749), (37, 776979), (63, 456321), (111, 258993), (189, 152107), (259, 110997), (333, 86331), (777, 36999), (999, 28777), (2331, 12333), (4111, 6993)]