20171284605

素因数分解:

$3^4\times 5^1\times {\mathrm{49805641}}^1$

素因数の和:49805658

約数の個数: 20

約数和(自身を含む): 36158896092

約数和(自身を除く): 15987611487

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49805641, 149416923, 249028205, 448250769, 747084615, 1344752307, 2241253845, 4034256921, 6723761535, 20171284605]

約数ペア:

[(1, 20171284605), (3, 6723761535), (5, 4034256921), (9, 2241253845), (15, 1344752307), (27, 747084615), (45, 448250769), (81, 249028205), (135, 149416923), (405, 49805641)]