18171909

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{12541}}^1$

素因数の和:12577

約数の個数: 24

約数和(自身を含む): 31304832

約数和(自身を除く): 13132923

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 12541, 37623, 87787, 112869, 263361, 288443, 790083, 865329, 2019101, 2595987, 6057303, 18171909]

約数ペア:

[(1, 18171909), (3, 6057303), (7, 2595987), (9, 2019101), (21, 865329), (23, 790083), (63, 288443), (69, 263361), (161, 112869), (207, 87787), (483, 37623), (1449, 12541)]