16991205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 34725888

約数和(自身を除く): 17734683

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 47, 55, 77, 105, 141, 165, 231, 235, 313, 329, 385, 517, 705, 939, 987, 1155, 1551, 1565, 1645, 2191, 2585, 3443, 3619, 4695, 4935, 6573, 7755, 10329, 10857, 10955, 14711, 17215, 18095, 24101, 32865, 44133, 51645, 54285, 72303, 73555, 102977, 120505, 161821, 220665, 308931, 361515, 485463, 514885, 809105, 1132747, 1544655, 2427315, 3398241, 5663735, 16991205]

約数ペア:

[(1, 16991205), (3, 5663735), (5, 3398241), (7, 2427315), (11, 1544655), (15, 1132747), (21, 809105), (33, 514885), (35, 485463), (47, 361515), (55, 308931), (77, 220665), (105, 161821), (141, 120505), (165, 102977), (231, 73555), (235, 72303), (313, 54285), (329, 51645), (385, 44133), (517, 32865), (705, 24101), (939, 18095), (987, 17215), (1155, 14711), (1551, 10955), (1565, 10857), (1645, 10329), (2191, 7755), (2585, 6573), (3443, 4935), (3619, 4695)]