20491902

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{401}}^1$

素因数の和:593

約数の個数: 48

約数和(自身を含む): 47410272

約数和(自身を除く): 26918370

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 167, 306, 334, 401, 501, 802, 1002, 1203, 1503, 2406, 2839, 3006, 3609, 5678, 6817, 7218, 8517, 13634, 17034, 20451, 25551, 40902, 51102, 61353, 66967, 122706, 133934, 200901, 401802, 602703, 1138439, 1205406, 2276878, 3415317, 6830634, 10245951, 20491902]

約数ペア:

[(1, 20491902), (2, 10245951), (3, 6830634), (6, 3415317), (9, 2276878), (17, 1205406), (18, 1138439), (34, 602703), (51, 401802), (102, 200901), (153, 133934), (167, 122706), (306, 66967), (334, 61353), (401, 51102), (501, 40902), (802, 25551), (1002, 20451), (1203, 17034), (1503, 13634), (2406, 8517), (2839, 7218), (3006, 6817), (3609, 5678)]