7878141

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{5119}}^1$

素因数の和:5150

約数の個数: 20

約数和(自身を含む): 12390400

約数和(自身を除く): 4512259

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 5119, 15357, 46071, 97261, 138213, 291783, 414639, 875349, 2626047, 7878141]

約数ペア:

[(1, 7878141), (3, 2626047), (9, 875349), (19, 414639), (27, 291783), (57, 138213), (81, 97261), (171, 46071), (513, 15357), (1539, 5119)]