18973665

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{8971}}^1$

素因数の和:9029

約数の個数: 24

約数和(自身を含む): 33591168

約数和(自身を除く): 14617503

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 8971, 26913, 44855, 80739, 134565, 403695, 421637, 1264911, 2108185, 3794733, 6324555, 18973665]

約数ペア:

[(1, 18973665), (3, 6324555), (5, 3794733), (9, 2108185), (15, 1264911), (45, 421637), (47, 403695), (141, 134565), (235, 80739), (423, 44855), (705, 26913), (2115, 8971)]