18749948

素因数分解:

$2^2\times 7^2\times {\mathrm{271}}^1\times {\mathrm{353}}^1$

素因数の和:642

約数の個数: 36

約数和(自身を含む): 38418912

約数和(自身を除く): 19668964

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 271, 353, 542, 706, 1084, 1412, 1897, 2471, 3794, 4942, 7588, 9884, 13279, 17297, 26558, 34594, 53116, 69188, 95663, 191326, 382652, 669641, 1339282, 2678564, 4687487, 9374974, 18749948]

約数ペア:

[(1, 18749948), (2, 9374974), (4, 4687487), (7, 2678564), (14, 1339282), (28, 669641), (49, 382652), (98, 191326), (196, 95663), (271, 69188), (353, 53116), (542, 34594), (706, 26558), (1084, 17297), (1412, 13279), (1897, 9884), (2471, 7588), (3794, 4942)]