20953328

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:246

約数の個数: 60

約数和(自身を含む): 45517920

約数和(自身を除く): 24564592

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 79, 88, 121, 137, 158, 176, 242, 274, 316, 484, 548, 632, 869, 968, 1096, 1264, 1507, 1738, 1936, 2192, 3014, 3476, 6028, 6952, 9559, 10823, 12056, 13904, 16577, 19118, 21646, 24112, 33154, 38236, 43292, 66308, 76472, 86584, 119053, 132616, 152944, 173168, 238106, 265232, 476212, 952424, 1309583, 1904848, 2619166, 5238332, 10476664, 20953328]

約数ペア:

[(1, 20953328), (2, 10476664), (4, 5238332), (8, 2619166), (11, 1904848), (16, 1309583), (22, 952424), (44, 476212), (79, 265232), (88, 238106), (121, 173168), (137, 152944), (158, 132616), (176, 119053), (242, 86584), (274, 76472), (316, 66308), (484, 43292), (548, 38236), (632, 33154), (869, 24112), (968, 21646), (1096, 19118), (1264, 16577), (1507, 13904), (1738, 12056), (1936, 10823), (2192, 9559), (3014, 6952), (3476, 6028)]