211312155

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{14939}}^1$

素因数の和:15011

約数の個数: 32

約数和(自身を含む): 361428480

約数和(自身を除く): 150116325

約数列:

[1, 3, 5, 15, 23, 41, 69, 115, 123, 205, 345, 615, 943, 2829, 4715, 14145, 14939, 44817, 74695, 224085, 343597, 612499, 1030791, 1717985, 1837497, 3062495, 5153955, 9187485, 14087477, 42262431, 70437385, 211312155]

約数ペア:

[(1, 211312155), (3, 70437385), (5, 42262431), (15, 14087477), (23, 9187485), (41, 5153955), (69, 3062495), (115, 1837497), (123, 1717985), (205, 1030791), (345, 612499), (615, 343597), (943, 224085), (2829, 74695), (4715, 44817), (14145, 14939)]