21811196

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 21734404

約数列:

[1, 2, 4, 11, 22, 44, 47, 53, 94, 106, 188, 199, 212, 398, 517, 583, 796, 1034, 1166, 2068, 2189, 2332, 2491, 4378, 4982, 8756, 9353, 9964, 10547, 18706, 21094, 27401, 37412, 42188, 54802, 102883, 109604, 116017, 205766, 232034, 411532, 464068, 495709, 991418, 1982836, 5452799, 10905598, 21811196]

約数ペア:

[(1, 21811196), (2, 10905598), (4, 5452799), (11, 1982836), (22, 991418), (44, 495709), (47, 464068), (53, 411532), (94, 232034), (106, 205766), (188, 116017), (199, 109604), (212, 102883), (398, 54802), (517, 42188), (583, 37412), (796, 27401), (1034, 21094), (1166, 18706), (2068, 10547), (2189, 9964), (2332, 9353), (2491, 8756), (4378, 4982)]