21180112

素因数分解:

$2^4\times {\mathrm{349}}^1\times {\mathrm{3793}}^1$

素因数の和:4150

約数の個数: 20

約数和(自身を含む): 41164900

約数和(自身を除く): 19984788

約数列:

[1, 2, 4, 8, 16, 349, 698, 1396, 2792, 3793, 5584, 7586, 15172, 30344, 60688, 1323757, 2647514, 5295028, 10590056, 21180112]

約数ペア:

[(1, 21180112), (2, 10590056), (4, 5295028), (8, 2647514), (16, 1323757), (349, 60688), (698, 30344), (1396, 15172), (2792, 7586), (3793, 5584)]