21622740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{557}}^1\times {\mathrm{647}}^1$

素因数の和:1216

約数の個数: 48

約数和(自身を含む): 60746112

約数和(自身を除く): 39123372

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 557, 647, 1114, 1294, 1671, 1941, 2228, 2588, 2785, 3235, 3342, 3882, 5570, 6470, 6684, 7764, 8355, 9705, 11140, 12940, 16710, 19410, 33420, 38820, 360379, 720758, 1081137, 1441516, 1801895, 2162274, 3603790, 4324548, 5405685, 7207580, 10811370, 21622740]

約数ペア:

[(1, 21622740), (2, 10811370), (3, 7207580), (4, 5405685), (5, 4324548), (6, 3603790), (10, 2162274), (12, 1801895), (15, 1441516), (20, 1081137), (30, 720758), (60, 360379), (557, 38820), (647, 33420), (1114, 19410), (1294, 16710), (1671, 12940), (1941, 11140), (2228, 9705), (2588, 8355), (2785, 7764), (3235, 6684), (3342, 6470), (3882, 5570)]