20721946

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{1049}}^1$

素因数の和:1158

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 17380454

約数列:

[1, 2, 7, 14, 17, 34, 83, 119, 166, 238, 581, 1049, 1162, 1411, 2098, 2822, 7343, 9877, 14686, 17833, 19754, 35666, 87067, 124831, 174134, 249662, 609469, 1218938, 1480139, 2960278, 10360973, 20721946]

約数ペア:

[(1, 20721946), (2, 10360973), (7, 2960278), (14, 1480139), (17, 1218938), (34, 609469), (83, 249662), (119, 174134), (166, 124831), (238, 87067), (581, 35666), (1049, 19754), (1162, 17833), (1411, 14686), (2098, 9877), (2822, 7343)]