20800878

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 50568192

約数和(自身を除く): 29767314

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 61, 69, 122, 138, 161, 183, 322, 353, 366, 427, 483, 706, 854, 966, 1059, 1281, 1403, 2118, 2471, 2562, 2806, 4209, 4942, 7413, 8119, 8418, 9821, 14826, 16238, 19642, 21533, 24357, 29463, 43066, 48714, 56833, 58926, 64599, 113666, 129198, 150731, 170499, 301462, 340998, 452193, 495259, 904386, 990518, 1485777, 2971554, 3466813, 6933626, 10400439, 20800878]

約数ペア:

[(1, 20800878), (2, 10400439), (3, 6933626), (6, 3466813), (7, 2971554), (14, 1485777), (21, 990518), (23, 904386), (42, 495259), (46, 452193), (61, 340998), (69, 301462), (122, 170499), (138, 150731), (161, 129198), (183, 113666), (322, 64599), (353, 58926), (366, 56833), (427, 48714), (483, 43066), (706, 29463), (854, 24357), (966, 21533), (1059, 19642), (1281, 16238), (1403, 14826), (2118, 9821), (2471, 8418), (2562, 8119), (2806, 7413), (4209, 4942)]