2131815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 3962880

約数和(自身を除く): 1831065

約数列:

[1, 3, 5, 7, 15, 21, 35, 79, 105, 237, 257, 395, 553, 771, 1185, 1285, 1659, 1799, 2765, 3855, 5397, 8295, 8995, 20303, 26985, 60909, 101515, 142121, 304545, 426363, 710605, 2131815]

約数ペア:

[(1, 2131815), (3, 710605), (5, 426363), (7, 304545), (15, 142121), (21, 101515), (35, 60909), (79, 26985), (105, 20303), (237, 8995), (257, 8295), (395, 5397), (553, 3855), (771, 2765), (1185, 1799), (1285, 1659)]