313215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:191

約数の個数: 32

約数和(自身を含む): 606720

約数和(自身を除く): 293505

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 157, 285, 399, 471, 665, 785, 1099, 1995, 2355, 2983, 3297, 5495, 8949, 14915, 16485, 20881, 44745, 62643, 104405, 313215]

約数ペア:

[(1, 313215), (3, 104405), (5, 62643), (7, 44745), (15, 20881), (19, 16485), (21, 14915), (35, 8949), (57, 5495), (95, 3297), (105, 2983), (133, 2355), (157, 1995), (285, 1099), (399, 785), (471, 665)]