18682815

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1481}}^1$

素因数の和:1547

約数の個数: 24

約数和(自身を含む): 30979728

約数和(自身を除く): 12296913

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 841, 1481, 2523, 4205, 4443, 7405, 12615, 22215, 42949, 128847, 214745, 644235, 1245521, 3736563, 6227605, 18682815]

約数ペア:

[(1, 18682815), (3, 6227605), (5, 3736563), (15, 1245521), (29, 644235), (87, 214745), (145, 128847), (435, 42949), (841, 22215), (1481, 12615), (2523, 7405), (4205, 4443)]