21650288

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:294

約数の個数: 60

約数和(自身を含む): 47200104

約数和(自身を除く): 25549816

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 53, 88, 106, 121, 176, 211, 212, 242, 422, 424, 484, 583, 844, 848, 968, 1166, 1688, 1936, 2321, 2332, 3376, 4642, 4664, 6413, 9284, 9328, 11183, 12826, 18568, 22366, 25531, 25652, 37136, 44732, 51062, 51304, 89464, 102124, 102608, 123013, 178928, 204248, 246026, 408496, 492052, 984104, 1353143, 1968208, 2706286, 5412572, 10825144, 21650288]

約数ペア:

[(1, 21650288), (2, 10825144), (4, 5412572), (8, 2706286), (11, 1968208), (16, 1353143), (22, 984104), (44, 492052), (53, 408496), (88, 246026), (106, 204248), (121, 178928), (176, 123013), (211, 102608), (212, 102124), (242, 89464), (422, 51304), (424, 51062), (484, 44732), (583, 37136), (844, 25652), (848, 25531), (968, 22366), (1166, 18568), (1688, 12826), (1936, 11183), (2321, 9328), (2332, 9284), (3376, 6413), (4642, 4664)]