20467748

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 42491904

約数和(自身を除く): 22024156

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 103, 151, 188, 206, 302, 329, 412, 604, 658, 721, 1057, 1316, 1442, 2114, 2884, 4228, 4841, 7097, 9682, 14194, 15553, 19364, 28388, 31106, 33887, 49679, 62212, 67774, 99358, 108871, 135548, 198716, 217742, 435484, 730991, 1461982, 2923964, 5116937, 10233874, 20467748]

約数ペア:

[(1, 20467748), (2, 10233874), (4, 5116937), (7, 2923964), (14, 1461982), (28, 730991), (47, 435484), (94, 217742), (103, 198716), (151, 135548), (188, 108871), (206, 99358), (302, 67774), (329, 62212), (412, 49679), (604, 33887), (658, 31106), (721, 28388), (1057, 19364), (1316, 15553), (1442, 14194), (2114, 9682), (2884, 7097), (4228, 4841)]