19290015

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3323}}^1$

素因数の和:3380

約数の個数: 32

約数和(自身を含む): 35101440

約数和(自身を除く): 15811425

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3323, 5805, 9969, 16615, 29907, 49845, 89721, 142889, 149535, 428667, 448605, 714445, 1286001, 2143335, 3858003, 6430005, 19290015]

約数ペア:

[(1, 19290015), (3, 6430005), (5, 3858003), (9, 2143335), (15, 1286001), (27, 714445), (43, 448605), (45, 428667), (129, 149535), (135, 142889), (215, 89721), (387, 49845), (645, 29907), (1161, 16615), (1935, 9969), (3323, 5805)]