20098881

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:147

約数の個数: 64

約数和(自身を含む): 35020800

約数和(自身を除く): 14921919

約数列:

[1, 3, 9, 11, 27, 31, 33, 37, 59, 93, 99, 111, 177, 279, 297, 333, 341, 407, 531, 649, 837, 999, 1023, 1147, 1221, 1593, 1829, 1947, 2183, 3069, 3441, 3663, 5487, 5841, 6549, 9207, 10323, 10989, 12617, 16461, 17523, 19647, 20119, 24013, 30969, 37851, 49383, 58941, 60357, 67673, 72039, 113553, 181071, 203019, 216117, 340659, 543213, 609057, 648351, 744403, 1827171, 2233209, 6699627, 20098881]

約数ペア:

[(1, 20098881), (3, 6699627), (9, 2233209), (11, 1827171), (27, 744403), (31, 648351), (33, 609057), (37, 543213), (59, 340659), (93, 216117), (99, 203019), (111, 181071), (177, 113553), (279, 72039), (297, 67673), (333, 60357), (341, 58941), (407, 49383), (531, 37851), (649, 30969), (837, 24013), (999, 20119), (1023, 19647), (1147, 17523), (1221, 16461), (1593, 12617), (1829, 10989), (1947, 10323), (2183, 9207), (3069, 6549), (3441, 5841), (3663, 5487)]