20645276

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{4159}}^1$

素因数の和:4253

約数の個数: 24

約数和(自身を含む): 38787840

約数和(自身を除く): 18142564

約数列:

[1, 2, 4, 17, 34, 68, 73, 146, 292, 1241, 2482, 4159, 4964, 8318, 16636, 70703, 141406, 282812, 303607, 607214, 1214428, 5161319, 10322638, 20645276]

約数ペア:

[(1, 20645276), (2, 10322638), (4, 5161319), (17, 1214428), (34, 607214), (68, 303607), (73, 282812), (146, 141406), (292, 70703), (1241, 16636), (2482, 8318), (4159, 4964)]