19954508

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 41610240

約数和(自身を除く): 21655732

約数列:

[1, 2, 4, 7, 14, 28, 47, 59, 94, 118, 188, 236, 257, 329, 413, 514, 658, 826, 1028, 1316, 1652, 1799, 2773, 3598, 5546, 7196, 11092, 12079, 15163, 19411, 24158, 30326, 38822, 48316, 60652, 77644, 84553, 106141, 169106, 212282, 338212, 424564, 712661, 1425322, 2850644, 4988627, 9977254, 19954508]

約数ペア:

[(1, 19954508), (2, 9977254), (4, 4988627), (7, 2850644), (14, 1425322), (28, 712661), (47, 424564), (59, 338212), (94, 212282), (118, 169106), (188, 106141), (236, 84553), (257, 77644), (329, 60652), (413, 48316), (514, 38822), (658, 30326), (826, 24158), (1028, 19411), (1316, 15163), (1652, 12079), (1799, 11092), (2773, 7196), (3598, 5546)]