31881171

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89303}}^1$

素因数の和:89330

約数の個数: 16

約数和(自身を含む): 51439104

約数和(自身を除く): 19557933

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 89303, 267909, 625121, 1518151, 1875363, 4554453, 10627057, 31881171]

約数ペア:

[(1, 31881171), (3, 10627057), (7, 4554453), (17, 1875363), (21, 1518151), (51, 625121), (119, 267909), (357, 89303)]