28051839

素因数分解:

$3^4\times {\mathrm{223}}^1\times {\mathrm{1553}}^1$

素因数の和:1788

約数の個数: 20

約数和(自身を含む): 42119616

約数和(自身を除く): 14067777

約数列:

[1, 3, 9, 27, 81, 223, 669, 1553, 2007, 4659, 6021, 13977, 18063, 41931, 125793, 346319, 1038957, 3116871, 9350613, 28051839]

約数ペア:

[(1, 28051839), (3, 9350613), (9, 3116871), (27, 1038957), (81, 346319), (223, 125793), (669, 41931), (1553, 18063), (2007, 13977), (4659, 6021)]