21866175

素因数分解:

$3^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{619}}^1$

素因数の和:792

約数の個数: 36

約数和(自身を含む): 39477880

約数和(自身を除く): 17611705

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 157, 225, 471, 619, 785, 1413, 1857, 2355, 3095, 3925, 5571, 7065, 9285, 11775, 15475, 27855, 35325, 46425, 97183, 139275, 291549, 485915, 874647, 1457745, 2429575, 4373235, 7288725, 21866175]

約数ペア:

[(1, 21866175), (3, 7288725), (5, 4373235), (9, 2429575), (15, 1457745), (25, 874647), (45, 485915), (75, 291549), (157, 139275), (225, 97183), (471, 46425), (619, 35325), (785, 27855), (1413, 15475), (1857, 11775), (2355, 9285), (3095, 7065), (3925, 5571)]