20931812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{283}}^1$

素因数の和:380

約数の個数: 36

約数和(自身を含む): 41103888

約数和(自身を除く): 20172076

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 283, 451, 566, 902, 1132, 1681, 1804, 3113, 3362, 6226, 6724, 11603, 12452, 18491, 23206, 36982, 46412, 73964, 127633, 255266, 475723, 510532, 951446, 1902892, 5232953, 10465906, 20931812]

約数ペア:

[(1, 20931812), (2, 10465906), (4, 5232953), (11, 1902892), (22, 951446), (41, 510532), (44, 475723), (82, 255266), (164, 127633), (283, 73964), (451, 46412), (566, 36982), (902, 23206), (1132, 18491), (1681, 12452), (1804, 11603), (3113, 6724), (3362, 6226)]