21347151

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{229}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 34268160

約数和(自身を除く): 12921009

約数列:

[1, 3, 7, 21, 23, 69, 161, 193, 229, 483, 579, 687, 1351, 1603, 4053, 4439, 4809, 5267, 13317, 15801, 31073, 36869, 44197, 93219, 110607, 132591, 309379, 928137, 1016531, 3049593, 7115717, 21347151]

約数ペア:

[(1, 21347151), (3, 7115717), (7, 3049593), (21, 1016531), (23, 928137), (69, 309379), (161, 132591), (193, 110607), (229, 93219), (483, 44197), (579, 36869), (687, 31073), (1351, 15801), (1603, 13317), (4053, 5267), (4439, 4809)]