17994855

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1213}}^1$

素因数の和:1287

約数の個数: 32

約数和(自身を含む): 30767616

約数和(自身を除く): 12772761

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 345, 645, 989, 1213, 2967, 3639, 4945, 6065, 14835, 18195, 27899, 52159, 83697, 139495, 156477, 260795, 418485, 782385, 1199657, 3598971, 5998285, 17994855]

約数ペア:

[(1, 17994855), (3, 5998285), (5, 3598971), (15, 1199657), (23, 782385), (43, 418485), (69, 260795), (115, 156477), (129, 139495), (215, 83697), (345, 52159), (645, 27899), (989, 18195), (1213, 14835), (2967, 6065), (3639, 4945)]