21309057

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{317}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 38892672

約数和(自身を除く): 17583615

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 97, 99, 231, 291, 317, 679, 693, 873, 951, 1067, 2037, 2219, 2853, 3201, 3487, 6111, 6657, 7469, 9603, 10461, 19971, 22407, 24409, 30749, 31383, 67221, 73227, 92247, 215243, 219681, 276741, 338239, 645729, 1014717, 1937187, 2367673, 3044151, 7103019, 21309057]

約数ペア:

[(1, 21309057), (3, 7103019), (7, 3044151), (9, 2367673), (11, 1937187), (21, 1014717), (33, 645729), (63, 338239), (77, 276741), (97, 219681), (99, 215243), (231, 92247), (291, 73227), (317, 67221), (679, 31383), (693, 30749), (873, 24409), (951, 22407), (1067, 19971), (2037, 10461), (2219, 9603), (2853, 7469), (3201, 6657), (3487, 6111)]