213403845

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{547}}^1\times {\mathrm{839}}^1$

素因数の和:1425

約数の個数: 32

約数和(自身を含む): 353525760

約数和(自身を除く): 140121915

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 547, 839, 1641, 2517, 2735, 4195, 8205, 12585, 16957, 26009, 50871, 78027, 84785, 130045, 254355, 390135, 458933, 1376799, 2294665, 6883995, 14226923, 42680769, 71134615, 213403845]

約数ペア:

[(1, 213403845), (3, 71134615), (5, 42680769), (15, 14226923), (31, 6883995), (93, 2294665), (155, 1376799), (465, 458933), (547, 390135), (839, 254355), (1641, 130045), (2517, 84785), (2735, 78027), (4195, 50871), (8205, 26009), (12585, 16957)]