21751042225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1\times {\mathrm{3929}}^1$

素因数の和:4482

約数の個数: 48

約数和(自身を含む): 30209941440

約数和(自身を除く): 8458899215

約数列:

[1, 5, 11, 25, 41, 55, 205, 275, 451, 491, 1025, 2255, 2455, 3929, 5401, 11275, 12275, 19645, 20131, 27005, 43219, 98225, 100655, 135025, 161089, 216095, 221441, 503275, 805445, 1080475, 1107205, 1771979, 1929139, 4027225, 5536025, 8859895, 9645695, 21220529, 44299475, 48228475, 79094699, 106102645, 395473495, 530513225, 870041689, 1977367475, 4350208445, 21751042225]

約数ペア:

[(1, 21751042225), (5, 4350208445), (11, 1977367475), (25, 870041689), (41, 530513225), (55, 395473495), (205, 106102645), (275, 79094699), (451, 48228475), (491, 44299475), (1025, 21220529), (2255, 9645695), (2455, 8859895), (3929, 5536025), (5401, 4027225), (11275, 1929139), (12275, 1771979), (19645, 1107205), (20131, 1080475), (27005, 805445), (43219, 503275), (98225, 221441), (100655, 216095), (135025, 161089)]