21154041

素因数分解:

$3^4\times {\mathrm{179}}^1\times {\mathrm{1459}}^1$

素因数の和:1650

約数の個数: 20

約数和(自身を含む): 31798800

約数和(自身を除く): 10644759

約数列:

[1, 3, 9, 27, 81, 179, 537, 1459, 1611, 4377, 4833, 13131, 14499, 39393, 118179, 261161, 783483, 2350449, 7051347, 21154041]

約数ペア:

[(1, 21154041), (3, 7051347), (9, 2350449), (27, 783483), (81, 261161), (179, 118179), (537, 39393), (1459, 14499), (1611, 13131), (4377, 4833)]