20647746

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{163871}}^1$

素因数の和:163886

約数の個数: 24

約数和(自身を含む): 51128064

約数和(自身を除く): 30480318

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 163871, 327742, 491613, 983226, 1147097, 1474839, 2294194, 2949678, 3441291, 6882582, 10323873, 20647746]

約数ペア:

[(1, 20647746), (2, 10323873), (3, 6882582), (6, 3441291), (7, 2949678), (9, 2294194), (14, 1474839), (18, 1147097), (21, 983226), (42, 491613), (63, 327742), (126, 163871)]