20561382

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1019}}^1$

素因数の和:1105

約数の個数: 48

約数和(自身を含む): 47736000

約数和(自身を除く): 27174618

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 59, 114, 118, 171, 177, 342, 354, 531, 1019, 1062, 1121, 2038, 2242, 3057, 3363, 6114, 6726, 9171, 10089, 18342, 19361, 20178, 38722, 58083, 60121, 116166, 120242, 174249, 180363, 348498, 360726, 541089, 1082178, 1142299, 2284598, 3426897, 6853794, 10280691, 20561382]

約数ペア:

[(1, 20561382), (2, 10280691), (3, 6853794), (6, 3426897), (9, 2284598), (18, 1142299), (19, 1082178), (38, 541089), (57, 360726), (59, 348498), (114, 180363), (118, 174249), (171, 120242), (177, 116166), (342, 60121), (354, 58083), (531, 38722), (1019, 20178), (1062, 19361), (1121, 18342), (2038, 10089), (2242, 9171), (3057, 6726), (3363, 6114)]