19391743

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1\times {\mathrm{239}}^1$

素因数の和:486

約数の個数: 16

約数和(自身を含む): 22717440

約数和(自身を除く): 3325697

約数列:

[1, 7, 67, 173, 239, 469, 1211, 1673, 11591, 16013, 41347, 81137, 112091, 289429, 2770249, 19391743]

約数ペア:

[(1, 19391743), (7, 2770249), (67, 289429), (173, 112091), (239, 81137), (469, 41347), (1211, 16013), (1673, 11591)]