31103751

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{907}}^1$

素因数の和:1011

約数の個数: 32

約数和(自身を含む): 50208768

約数和(自身を除く): 19105017

約数列:

[1, 3, 7, 21, 23, 69, 71, 161, 213, 483, 497, 907, 1491, 1633, 2721, 4899, 6349, 11431, 19047, 20861, 34293, 62583, 64397, 146027, 193191, 438081, 450779, 1352337, 1481131, 4443393, 10367917, 31103751]

約数ペア:

[(1, 31103751), (3, 10367917), (7, 4443393), (21, 1481131), (23, 1352337), (69, 450779), (71, 438081), (161, 193191), (213, 146027), (483, 64397), (497, 62583), (907, 34293), (1491, 20861), (1633, 19047), (2721, 11431), (4899, 6349)]