21410360

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3907}}^1$

素因数の和:4055

約数の個数: 32

約数和(自身を含む): 48537360

約数和(自身を除く): 27127000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3907, 5480, 7814, 15628, 19535, 31256, 39070, 78140, 156280, 535259, 1070518, 2141036, 2676295, 4282072, 5352590, 10705180, 21410360]

約数ペア:

[(1, 21410360), (2, 10705180), (4, 5352590), (5, 4282072), (8, 2676295), (10, 2141036), (20, 1070518), (40, 535259), (137, 156280), (274, 78140), (548, 39070), (685, 31256), (1096, 19535), (1370, 15628), (2740, 7814), (3907, 5480)]