21103467

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 36946944

約数和(自身を除く): 15843477

約数列:

[1, 3, 7, 11, 21, 31, 33, 49, 77, 93, 147, 217, 231, 341, 421, 539, 651, 1023, 1263, 1519, 1617, 2387, 2947, 4557, 4631, 7161, 8841, 13051, 13893, 16709, 20629, 32417, 39153, 50127, 61887, 91357, 97251, 143561, 226919, 274071, 430683, 639499, 680757, 1004927, 1918497, 3014781, 7034489, 21103467]

約数ペア:

[(1, 21103467), (3, 7034489), (7, 3014781), (11, 1918497), (21, 1004927), (31, 680757), (33, 639499), (49, 430683), (77, 274071), (93, 226919), (147, 143561), (217, 97251), (231, 91357), (341, 61887), (421, 50127), (539, 39153), (651, 32417), (1023, 20629), (1263, 16709), (1519, 13893), (1617, 13051), (2387, 8841), (2947, 7161), (4557, 4631)]