18364221

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1097

約数の個数: 24

約数和(自身を含む): 27855360

約数和(自身を除く): 9491139

約数列:

[1, 3, 9, 29, 71, 87, 213, 261, 639, 991, 2059, 2973, 6177, 8919, 18531, 28739, 70361, 86217, 211083, 258651, 633249, 2040469, 6121407, 18364221]

約数ペア:

[(1, 18364221), (3, 6121407), (9, 2040469), (29, 633249), (71, 258651), (87, 211083), (213, 86217), (261, 70361), (639, 28739), (991, 18531), (2059, 8919), (2973, 6177)]