20502995

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:387

約数の個数: 24

約数和(自身を含む): 26755344

約数和(自身を除く): 6252349

約数列:

[1, 5, 19, 37, 95, 185, 307, 361, 703, 1535, 1805, 3515, 5833, 11359, 13357, 29165, 56795, 66785, 110827, 215821, 554135, 1079105, 4100599, 20502995]

約数ペア:

[(1, 20502995), (5, 4100599), (19, 1079105), (37, 554135), (95, 215821), (185, 110827), (307, 66785), (361, 56795), (703, 29165), (1535, 13357), (1805, 11359), (3515, 5833)]