31508841

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{547}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 52046848

約数和(自身を除く): 20538007

約数列:

[1, 3, 7, 13, 21, 39, 91, 211, 273, 547, 633, 1477, 1641, 2743, 3829, 4431, 7111, 8229, 11487, 19201, 21333, 49777, 57603, 115417, 149331, 346251, 807919, 1500421, 2423757, 4501263, 10502947, 31508841]

約数ペア:

[(1, 31508841), (3, 10502947), (7, 4501263), (13, 2423757), (21, 1500421), (39, 807919), (91, 346251), (211, 149331), (273, 115417), (547, 57603), (633, 49777), (1477, 21333), (1641, 19201), (2743, 11487), (3829, 8229), (4431, 7111)]