219345987

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1\times {\mathrm{971}}^1$

素因数の和:1359

約数の個数: 32

約数和(自身を含む): 346374144

約数和(自身を除く): 127028157

約数列:

[1, 3, 7, 21, 31, 93, 217, 347, 651, 971, 1041, 2429, 2913, 6797, 7287, 10757, 20391, 30101, 32271, 75299, 90303, 210707, 225897, 336937, 632121, 1010811, 2358559, 7075677, 10445047, 31335141, 73115329, 219345987]

約数ペア:

[(1, 219345987), (3, 73115329), (7, 31335141), (21, 10445047), (31, 7075677), (93, 2358559), (217, 1010811), (347, 632121), (651, 336937), (971, 225897), (1041, 210707), (2429, 90303), (2913, 75299), (6797, 32271), (7287, 30101), (10757, 20391)]