221437215

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{213949}}^1$

素因数の和:213983

約数の個数: 24

約数和(自身を含む): 400514400

約数和(自身を除く): 179077185

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 213949, 641847, 1069745, 1925541, 3209235, 4920827, 9627705, 14762481, 24604135, 44287443, 73812405, 221437215]

約数ペア:

[(1, 221437215), (3, 73812405), (5, 44287443), (9, 24604135), (15, 14762481), (23, 9627705), (45, 4920827), (69, 3209235), (115, 1925541), (207, 1069745), (345, 641847), (1035, 213949)]