209831408

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{771439}}^1$

素因数の和:771464

約数の個数: 20

約数和(自身を含む): 430463520

約数和(自身を除く): 220632112

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 771439, 1542878, 3085756, 6171512, 12343024, 13114463, 26228926, 52457852, 104915704, 209831408]

約数ペア:

[(1, 209831408), (2, 104915704), (4, 52457852), (8, 26228926), (16, 13114463), (17, 12343024), (34, 6171512), (68, 3085756), (136, 1542878), (272, 771439)]