21931756

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2297}}^1$

素因数の和:2350

約数の個数: 48

約数和(自身を含む): 49416192

約数和(自身を除く): 27484436

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 124, 154, 217, 308, 341, 434, 682, 868, 1364, 2297, 2387, 4594, 4774, 9188, 9548, 16079, 25267, 32158, 50534, 64316, 71207, 101068, 142414, 176869, 284828, 353738, 498449, 707476, 783277, 996898, 1566554, 1993796, 3133108, 5482939, 10965878, 21931756]

約数ペア:

[(1, 21931756), (2, 10965878), (4, 5482939), (7, 3133108), (11, 1993796), (14, 1566554), (22, 996898), (28, 783277), (31, 707476), (44, 498449), (62, 353738), (77, 284828), (124, 176869), (154, 142414), (217, 101068), (308, 71207), (341, 64316), (434, 50534), (682, 32158), (868, 25267), (1364, 16079), (2297, 9548), (2387, 9188), (4594, 4774)]