20721448

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{2837}}^1$

素因数の和:2937

約数の個数: 32

約数和(自身を含む): 42910560

約数和(自身を除く): 22189112

約数列:

[1, 2, 4, 8, 11, 22, 44, 83, 88, 166, 332, 664, 913, 1826, 2837, 3652, 5674, 7304, 11348, 22696, 31207, 62414, 124828, 235471, 249656, 470942, 941884, 1883768, 2590181, 5180362, 10360724, 20721448]

約数ペア:

[(1, 20721448), (2, 10360724), (4, 5180362), (8, 2590181), (11, 1883768), (22, 941884), (44, 470942), (83, 249656), (88, 235471), (166, 124828), (332, 62414), (664, 31207), (913, 22696), (1826, 11348), (2837, 7304), (3652, 5674)]