21451695

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{9109}}^1$

素因数の和:9274

約数の個数: 16

約数和(自身を含む): 34545120

約数和(自身を除く): 13093425

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 9109, 27327, 45545, 136635, 1430113, 4290339, 7150565, 21451695]

約数ペア:

[(1, 21451695), (3, 7150565), (5, 4290339), (15, 1430113), (157, 136635), (471, 45545), (785, 27327), (2355, 9109)]