18115990

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{13829}}^1$

素因数の和:13967

約数の個数: 16

約数和(自身を含む): 32860080

約数和(自身を除く): 14744090

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 13829, 27658, 69145, 138290, 1811599, 3623198, 9057995, 18115990]

約数ペア:

[(1, 18115990), (2, 9057995), (5, 3623198), (10, 1811599), (131, 138290), (262, 69145), (655, 27658), (1310, 13829)]