21759710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2269}}^1$

素因数の和:2420

約数の個数: 32

約数和(自身を含む): 45109440

約数和(自身を除く): 23349730

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 137, 274, 685, 959, 1370, 1918, 2269, 4538, 4795, 9590, 11345, 15883, 22690, 31766, 79415, 158830, 310853, 621706, 1554265, 2175971, 3108530, 4351942, 10879855, 21759710]

約数ペア:

[(1, 21759710), (2, 10879855), (5, 4351942), (7, 3108530), (10, 2175971), (14, 1554265), (35, 621706), (70, 310853), (137, 158830), (274, 79415), (685, 31766), (959, 22690), (1370, 15883), (1918, 11345), (2269, 9590), (4538, 4795)]