217804804

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^2\times {\mathrm{601}}^1$

素因数の和:705

約数の個数: 54

約数和(自身を含む): 454694814

約数和(自身を除く): 236890010

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 601, 602, 1202, 1204, 1849, 2107, 2404, 3698, 4207, 4214, 7396, 8414, 8428, 12943, 16828, 25843, 25886, 29449, 51686, 51772, 58898, 90601, 103372, 117796, 180901, 181202, 361802, 362404, 723604, 1111249, 1266307, 2222498, 2532614, 4444996, 5065228, 7778743, 15557486, 31114972, 54451201, 108902402, 217804804]

約数ペア:

[(1, 217804804), (2, 108902402), (4, 54451201), (7, 31114972), (14, 15557486), (28, 7778743), (43, 5065228), (49, 4444996), (86, 2532614), (98, 2222498), (172, 1266307), (196, 1111249), (301, 723604), (601, 362404), (602, 361802), (1202, 181202), (1204, 180901), (1849, 117796), (2107, 103372), (2404, 90601), (3698, 58898), (4207, 51772), (4214, 51686), (7396, 29449), (8414, 25886), (8428, 25843), (12943, 16828)]