31181013

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{499}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 46332000

約数和(自身を除く): 15150987

約数列:

[1, 3, 9, 53, 131, 159, 393, 477, 499, 1179, 1497, 4491, 6943, 20829, 26447, 62487, 65369, 79341, 196107, 238023, 588321, 3464557, 10393671, 31181013]

約数ペア:

[(1, 31181013), (3, 10393671), (9, 3464557), (53, 588321), (131, 238023), (159, 196107), (393, 79341), (477, 65369), (499, 62487), (1179, 26447), (1497, 20829), (4491, 6943)]