21250136

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 44815680

約数和(自身を除く): 23565544

約数列:

[1, 2, 4, 8, 17, 34, 37, 41, 68, 74, 82, 103, 136, 148, 164, 206, 296, 328, 412, 629, 697, 824, 1258, 1394, 1517, 1751, 2516, 2788, 3034, 3502, 3811, 4223, 5032, 5576, 6068, 7004, 7622, 8446, 12136, 14008, 15244, 16892, 25789, 30488, 33784, 51578, 64787, 71791, 103156, 129574, 143582, 156251, 206312, 259148, 287164, 312502, 518296, 574328, 625004, 1250008, 2656267, 5312534, 10625068, 21250136]

約数ペア:

[(1, 21250136), (2, 10625068), (4, 5312534), (8, 2656267), (17, 1250008), (34, 625004), (37, 574328), (41, 518296), (68, 312502), (74, 287164), (82, 259148), (103, 206312), (136, 156251), (148, 143582), (164, 129574), (206, 103156), (296, 71791), (328, 64787), (412, 51578), (629, 33784), (697, 30488), (824, 25789), (1258, 16892), (1394, 15244), (1517, 14008), (1751, 12136), (2516, 8446), (2788, 7622), (3034, 7004), (3502, 6068), (3811, 5576), (4223, 5032)]