219027679

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{397}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 250873728

約数和(自身を除く): 31846049

約数列:

[1, 13, 31, 37, 397, 403, 481, 1147, 1369, 5161, 12307, 14689, 14911, 17797, 42439, 159991, 190957, 455359, 543493, 551707, 5919667, 7065409, 16848283, 219027679]

約数ペア:

[(1, 219027679), (13, 16848283), (31, 7065409), (37, 5919667), (397, 551707), (403, 543493), (481, 455359), (1147, 190957), (1369, 159991), (5161, 42439), (12307, 17797), (14689, 14911)]