221296215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{28871}}^1$

素因数の和:28959

約数の個数: 32

約数和(自身を含む): 410213376

約数和(自身を除く): 188917161

約数列:

[1, 3, 5, 7, 15, 21, 35, 73, 105, 219, 365, 511, 1095, 1533, 2555, 7665, 28871, 86613, 144355, 202097, 433065, 606291, 1010485, 2107583, 3031455, 6322749, 10537915, 14753081, 31613745, 44259243, 73765405, 221296215]

約数ペア:

[(1, 221296215), (3, 73765405), (5, 44259243), (7, 31613745), (15, 14753081), (21, 10537915), (35, 6322749), (73, 3031455), (105, 2107583), (219, 1010485), (365, 606291), (511, 433065), (1095, 202097), (1533, 144355), (2555, 86613), (7665, 28871)]