28798209

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{631}}^1$

素因数の和:1109

約数の個数: 24

約数和(自身を含む): 45549504

約数和(自身を除く): 16751295

約数列:

[1, 3, 9, 11, 33, 99, 461, 631, 1383, 1893, 4149, 5071, 5679, 6941, 15213, 20823, 45639, 62469, 290891, 872673, 2618019, 3199801, 9599403, 28798209]

約数ペア:

[(1, 28798209), (3, 9599403), (9, 3199801), (11, 2618019), (33, 872673), (99, 290891), (461, 62469), (631, 45639), (1383, 20823), (1893, 15213), (4149, 6941), (5071, 5679)]