30891986

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{13327}}^1$

素因数の和:13409

約数の個数: 16

約数和(自身を含む): 49580160

約数和(自身を除く): 18688174

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 13327, 26654, 253213, 506426, 812947, 1625894, 15445993, 30891986]

約数ペア:

[(1, 30891986), (2, 15445993), (19, 1625894), (38, 812947), (61, 506426), (122, 253213), (1159, 26654), (2318, 13327)]