215899995

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{5479}}^1$

素因数の和:5595

約数の個数: 32

約数和(自身を含む): 359838720

約数和(自身を除く): 143938725

約数列:

[1, 3, 5, 15, 37, 71, 111, 185, 213, 355, 555, 1065, 2627, 5479, 7881, 13135, 16437, 27395, 39405, 82185, 202723, 389009, 608169, 1013615, 1167027, 1945045, 3040845, 5835135, 14393333, 43179999, 71966665, 215899995]

約数ペア:

[(1, 215899995), (3, 71966665), (5, 43179999), (15, 14393333), (37, 5835135), (71, 3040845), (111, 1945045), (185, 1167027), (213, 1013615), (355, 608169), (555, 389009), (1065, 202723), (2627, 82185), (5479, 39405), (7881, 27395), (13135, 16437)]