17970561

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15013}}^1$

素因数の和:15045

約数の個数: 24

約数和(自身を含む): 31229120

約数和(自身を除く): 13258559

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 15013, 45039, 105091, 135117, 285247, 315273, 855741, 945819, 1996729, 2567223, 5990187, 17970561]

約数ペア:

[(1, 17970561), (3, 5990187), (7, 2567223), (9, 1996729), (19, 945819), (21, 855741), (57, 315273), (63, 285247), (133, 135117), (171, 105091), (399, 45039), (1197, 15013)]