31851981

素因数分解:

$3^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1327}}^1$

素因数の和:1470

約数の個数: 32

約数和(自身を含む): 54394880

約数和(自身を除く): 22542899

約数列:

[1, 3, 7, 9, 21, 27, 63, 127, 189, 381, 889, 1143, 1327, 2667, 3429, 3981, 8001, 9289, 11943, 24003, 27867, 35829, 83601, 168529, 250803, 505587, 1179703, 1516761, 3539109, 4550283, 10617327, 31851981]

約数ペア:

[(1, 31851981), (3, 10617327), (7, 4550283), (9, 3539109), (21, 1516761), (27, 1179703), (63, 505587), (127, 250803), (189, 168529), (381, 83601), (889, 35829), (1143, 27867), (1327, 24003), (2667, 11943), (3429, 9289), (3981, 8001)]