20213138898

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{128147}}^1$

素因数の和:128308

約数の個数: 64

約数和(自身を含む): 47240478720

約数和(自身を除く): 27027339822

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 127, 138, 207, 254, 381, 414, 621, 762, 1143, 1242, 2286, 2921, 3429, 5842, 6858, 8763, 17526, 26289, 52578, 78867, 128147, 157734, 256294, 384441, 768882, 1153323, 2306646, 2947381, 3459969, 5894762, 6919938, 8842143, 16274669, 17684286, 26526429, 32549338, 48824007, 53052858, 79579287, 97648014, 146472021, 159158574, 292944042, 374317387, 439416063, 748634774, 878832126, 1122952161, 2245904322, 3368856483, 6737712966, 10106569449, 20213138898]

約数ペア:

[(1, 20213138898), (2, 10106569449), (3, 6737712966), (6, 3368856483), (9, 2245904322), (18, 1122952161), (23, 878832126), (27, 748634774), (46, 439416063), (54, 374317387), (69, 292944042), (127, 159158574), (138, 146472021), (207, 97648014), (254, 79579287), (381, 53052858), (414, 48824007), (621, 32549338), (762, 26526429), (1143, 17684286), (1242, 16274669), (2286, 8842143), (2921, 6919938), (3429, 5894762), (5842, 3459969), (6858, 2947381), (8763, 2306646), (17526, 1153323), (26289, 768882), (52578, 384441), (78867, 256294), (128147, 157734)]