30906981

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3803}}^1$

素因数の和:3862

約数の個数: 32

約数和(自身を含む): 53560320

約数和(自身を除く): 22653339

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2709, 3803, 8127, 11409, 26621, 34227, 79863, 102681, 163529, 239589, 490587, 718767, 1144703, 1471761, 3434109, 4415283, 10302327, 30906981]

約数ペア:

[(1, 30906981), (3, 10302327), (7, 4415283), (9, 3434109), (21, 1471761), (27, 1144703), (43, 718767), (63, 490587), (129, 239589), (189, 163529), (301, 102681), (387, 79863), (903, 34227), (1161, 26621), (2709, 11409), (3803, 8127)]