21014994

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3499}}^1$

素因数の和:3535

約数の個数: 64

約数和(自身を含む): 56448000

約数和(自身を除く): 35433006

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 66, 77, 78, 91, 143, 154, 182, 231, 273, 286, 429, 462, 546, 858, 1001, 2002, 3003, 3499, 6006, 6998, 10497, 20994, 24493, 38489, 45487, 48986, 73479, 76978, 90974, 115467, 136461, 146958, 230934, 269423, 272922, 318409, 500357, 538846, 636818, 808269, 955227, 1000714, 1501071, 1616538, 1910454, 3002142, 3502499, 7004998, 10507497, 21014994]

約数ペア:

[(1, 21014994), (2, 10507497), (3, 7004998), (6, 3502499), (7, 3002142), (11, 1910454), (13, 1616538), (14, 1501071), (21, 1000714), (22, 955227), (26, 808269), (33, 636818), (39, 538846), (42, 500357), (66, 318409), (77, 272922), (78, 269423), (91, 230934), (143, 146958), (154, 136461), (182, 115467), (231, 90974), (273, 76978), (286, 73479), (429, 48986), (462, 45487), (546, 38489), (858, 24493), (1001, 20994), (2002, 10497), (3003, 6998), (3499, 6006)]