19962544

素因数分解:

$2^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1301}}^1$

素因数の和:1453

約数の個数: 40

約数和(自身を含む): 44559648

約数和(自身を除く): 24597104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 137, 274, 548, 959, 1096, 1301, 1918, 2192, 2602, 3836, 5204, 7672, 9107, 10408, 15344, 18214, 20816, 36428, 72856, 145712, 178237, 356474, 712948, 1247659, 1425896, 2495318, 2851792, 4990636, 9981272, 19962544]

約数ペア:

[(1, 19962544), (2, 9981272), (4, 4990636), (7, 2851792), (8, 2495318), (14, 1425896), (16, 1247659), (28, 712948), (56, 356474), (112, 178237), (137, 145712), (274, 72856), (548, 36428), (959, 20816), (1096, 18214), (1301, 15344), (1918, 10408), (2192, 9107), (2602, 7672), (3836, 5204)]