18636681

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{12157}}^1$

素因数の和:12240

約数の個数: 16

約数和(自身を含む): 28790144

約数和(自身を除く): 10153463

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 12157, 36471, 85099, 255297, 887461, 2662383, 6212227, 18636681]

約数ペア:

[(1, 18636681), (3, 6212227), (7, 2662383), (21, 887461), (73, 255297), (219, 85099), (511, 36471), (1533, 12157)]