21002289

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:170

約数の個数: 64

約数和(自身を含む): 37601280

約数和(自身を除く): 16598991

約数列:

[1, 3, 7, 11, 21, 23, 33, 59, 67, 69, 77, 161, 177, 201, 231, 253, 413, 469, 483, 649, 737, 759, 1239, 1357, 1407, 1541, 1771, 1947, 2211, 3953, 4071, 4543, 4623, 5159, 5313, 9499, 10787, 11859, 13629, 14927, 15477, 16951, 27671, 28497, 32361, 43483, 44781, 50853, 83013, 90919, 104489, 118657, 130449, 272757, 304381, 313467, 355971, 636433, 913143, 1000109, 1909299, 3000327, 7000763, 21002289]

約数ペア:

[(1, 21002289), (3, 7000763), (7, 3000327), (11, 1909299), (21, 1000109), (23, 913143), (33, 636433), (59, 355971), (67, 313467), (69, 304381), (77, 272757), (161, 130449), (177, 118657), (201, 104489), (231, 90919), (253, 83013), (413, 50853), (469, 44781), (483, 43483), (649, 32361), (737, 28497), (759, 27671), (1239, 16951), (1357, 15477), (1407, 14927), (1541, 13629), (1771, 11859), (1947, 10787), (2211, 9499), (3953, 5313), (4071, 5159), (4543, 4623)]