21330232

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1117}}^1$

素因数の和:1172

約数の個数: 64

約数和(自身を含む): 51517440

約数和(自身を除く): 30187208

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 31, 44, 56, 62, 77, 88, 124, 154, 217, 248, 308, 341, 434, 616, 682, 868, 1117, 1364, 1736, 2234, 2387, 2728, 4468, 4774, 7819, 8936, 9548, 12287, 15638, 19096, 24574, 31276, 34627, 49148, 62552, 69254, 86009, 98296, 138508, 172018, 242389, 277016, 344036, 380897, 484778, 688072, 761794, 969556, 1523588, 1939112, 2666279, 3047176, 5332558, 10665116, 21330232]

約数ペア:

[(1, 21330232), (2, 10665116), (4, 5332558), (7, 3047176), (8, 2666279), (11, 1939112), (14, 1523588), (22, 969556), (28, 761794), (31, 688072), (44, 484778), (56, 380897), (62, 344036), (77, 277016), (88, 242389), (124, 172018), (154, 138508), (217, 98296), (248, 86009), (308, 69254), (341, 62552), (434, 49148), (616, 34627), (682, 31276), (868, 24574), (1117, 19096), (1364, 15638), (1736, 12287), (2234, 9548), (2387, 8936), (2728, 7819), (4468, 4774)]