18320769

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{503}}^1$

素因数の和:602

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 10709631

約数列:

[1, 3, 9, 19, 27, 57, 71, 171, 213, 503, 513, 639, 1349, 1509, 1917, 4047, 4527, 9557, 12141, 13581, 28671, 35713, 36423, 86013, 107139, 258039, 321417, 678547, 964251, 2035641, 6106923, 18320769]

約数ペア:

[(1, 18320769), (3, 6106923), (9, 2035641), (19, 964251), (27, 678547), (57, 321417), (71, 258039), (171, 107139), (213, 86013), (503, 36423), (513, 35713), (639, 28671), (1349, 13581), (1509, 12141), (1917, 9557), (4047, 4527)]