21301082

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:179

約数の個数: 48

約数和(自身を含む): 37920960

約数和(自身を除く): 16619878

約数列:

[1, 2, 11, 22, 23, 43, 46, 86, 89, 121, 178, 242, 253, 473, 506, 946, 979, 989, 1958, 1978, 2047, 2783, 3827, 4094, 5203, 5566, 7654, 10406, 10769, 10879, 21538, 21758, 22517, 42097, 45034, 84194, 88021, 119669, 176042, 239338, 247687, 463067, 495374, 926134, 968231, 1936462, 10650541, 21301082]

約数ペア:

[(1, 21301082), (2, 10650541), (11, 1936462), (22, 968231), (23, 926134), (43, 495374), (46, 463067), (86, 247687), (89, 239338), (121, 176042), (178, 119669), (242, 88021), (253, 84194), (473, 45034), (506, 42097), (946, 22517), (979, 21758), (989, 21538), (1958, 10879), (1978, 10769), (2047, 10406), (2783, 7654), (3827, 5566), (4094, 5203)]