20118654

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:393

約数の個数: 48

約数和(自身を含む): 45090864

約数和(自身を除く): 24972210

約数列:

[1, 2, 3, 6, 9, 18, 61, 73, 122, 146, 183, 219, 251, 366, 438, 502, 549, 657, 753, 1098, 1314, 1506, 2259, 4453, 4518, 8906, 13359, 15311, 18323, 26718, 30622, 36646, 40077, 45933, 54969, 80154, 91866, 109938, 137799, 164907, 275598, 329814, 1117703, 2235406, 3353109, 6706218, 10059327, 20118654]

約数ペア:

[(1, 20118654), (2, 10059327), (3, 6706218), (6, 3353109), (9, 2235406), (18, 1117703), (61, 329814), (73, 275598), (122, 164907), (146, 137799), (183, 109938), (219, 91866), (251, 80154), (366, 54969), (438, 45933), (502, 40077), (549, 36646), (657, 30622), (753, 26718), (1098, 18323), (1314, 15311), (1506, 13359), (2259, 8906), (4453, 4518)]