20877836

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1907}}^1$

素因数の和:1958

約数の個数: 48

約数和(自身を含む): 46158336

約数和(自身を除く): 25280500

約数列:

[1, 2, 4, 7, 14, 17, 23, 28, 34, 46, 68, 92, 119, 161, 238, 322, 391, 476, 644, 782, 1564, 1907, 2737, 3814, 5474, 7628, 10948, 13349, 26698, 32419, 43861, 53396, 64838, 87722, 129676, 175444, 226933, 307027, 453866, 614054, 745637, 907732, 1228108, 1491274, 2982548, 5219459, 10438918, 20877836]

約数ペア:

[(1, 20877836), (2, 10438918), (4, 5219459), (7, 2982548), (14, 1491274), (17, 1228108), (23, 907732), (28, 745637), (34, 614054), (46, 453866), (68, 307027), (92, 226933), (119, 175444), (161, 129676), (238, 87722), (322, 64838), (391, 53396), (476, 43861), (644, 32419), (782, 26698), (1564, 13349), (1907, 10948), (2737, 7628), (3814, 5474)]