31371921

素因数分解:

$3^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1307}}^1$

素因数の和:1450

約数の個数: 32

約数和(自身を含む): 53575680

約数和(自身を除く): 22203759

約数列:

[1, 3, 7, 9, 21, 27, 63, 127, 189, 381, 889, 1143, 1307, 2667, 3429, 3921, 8001, 9149, 11763, 24003, 27447, 35289, 82341, 165989, 247023, 497967, 1161923, 1493901, 3485769, 4481703, 10457307, 31371921]

約数ペア:

[(1, 31371921), (3, 10457307), (7, 4481703), (9, 3485769), (21, 1493901), (27, 1161923), (63, 497967), (127, 247023), (189, 165989), (381, 82341), (889, 35289), (1143, 27447), (1307, 24003), (2667, 11763), (3429, 9149), (3921, 8001)]