221270478

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{463}}^1\times {\mathrm{557}}^1$

素因数の和:1049

約数の個数: 64

約数和(自身を含む): 521966592

約数和(自身を除く): 300696114

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 463, 557, 858, 926, 1114, 1389, 1671, 2778, 3342, 5093, 6019, 6127, 7241, 10186, 12038, 12254, 14482, 15279, 18057, 18381, 21723, 30558, 36114, 36762, 43446, 66209, 79651, 132418, 159302, 198627, 238953, 257891, 397254, 477906, 515782, 773673, 1547346, 2836801, 3352583, 5673602, 6705166, 8510403, 10057749, 17020806, 20115498, 36878413, 73756826, 110635239, 221270478]

約数ペア:

[(1, 221270478), (2, 110635239), (3, 73756826), (6, 36878413), (11, 20115498), (13, 17020806), (22, 10057749), (26, 8510403), (33, 6705166), (39, 5673602), (66, 3352583), (78, 2836801), (143, 1547346), (286, 773673), (429, 515782), (463, 477906), (557, 397254), (858, 257891), (926, 238953), (1114, 198627), (1389, 159302), (1671, 132418), (2778, 79651), (3342, 66209), (5093, 43446), (6019, 36762), (6127, 36114), (7241, 30558), (10186, 21723), (12038, 18381), (12254, 18057), (14482, 15279)]