20811612

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2467}}^1$

素因数の和:2530

約数の個数: 48

約数和(自身を含む): 52519040

約数和(自身を除く): 31707428

約数列:

[1, 2, 3, 4, 6, 12, 19, 37, 38, 57, 74, 76, 111, 114, 148, 222, 228, 444, 703, 1406, 2109, 2467, 2812, 4218, 4934, 7401, 8436, 9868, 14802, 29604, 46873, 91279, 93746, 140619, 182558, 187492, 273837, 281238, 365116, 547674, 562476, 1095348, 1734301, 3468602, 5202903, 6937204, 10405806, 20811612]

約数ペア:

[(1, 20811612), (2, 10405806), (3, 6937204), (4, 5202903), (6, 3468602), (12, 1734301), (19, 1095348), (37, 562476), (38, 547674), (57, 365116), (74, 281238), (76, 273837), (111, 187492), (114, 182558), (148, 140619), (222, 93746), (228, 91279), (444, 46873), (703, 29604), (1406, 14802), (2109, 9868), (2467, 8436), (2812, 7401), (4218, 4934)]