20883184

素因数分解:

$2^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1361}}^1$

素因数の和:1513

約数の個数: 40

約数和(自身を含む): 46613088

約数和(自身を除く): 25729904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 137, 274, 548, 959, 1096, 1361, 1918, 2192, 2722, 3836, 5444, 7672, 9527, 10888, 15344, 19054, 21776, 38108, 76216, 152432, 186457, 372914, 745828, 1305199, 1491656, 2610398, 2983312, 5220796, 10441592, 20883184]

約数ペア:

[(1, 20883184), (2, 10441592), (4, 5220796), (7, 2983312), (8, 2610398), (14, 1491656), (16, 1305199), (28, 745828), (56, 372914), (112, 186457), (137, 152432), (274, 76216), (548, 38108), (959, 21776), (1096, 19054), (1361, 15344), (1918, 10888), (2192, 9527), (2722, 7672), (3836, 5444)]