18943418

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1237}}^1$

素因数の和:1302

約数の個数: 32

約数和(自身を含む): 33277440

約数和(自身を除く): 14334022

約数列:

[1, 2, 13, 19, 26, 31, 38, 62, 247, 403, 494, 589, 806, 1178, 1237, 2474, 7657, 15314, 16081, 23503, 32162, 38347, 47006, 76694, 305539, 498511, 611078, 728593, 997022, 1457186, 9471709, 18943418]

約数ペア:

[(1, 18943418), (2, 9471709), (13, 1457186), (19, 997022), (26, 728593), (31, 611078), (38, 498511), (62, 305539), (247, 76694), (403, 47006), (494, 38347), (589, 32162), (806, 23503), (1178, 16081), (1237, 15314), (2474, 7657)]