209380479

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4177}}^1$

素因数の和:4236

約数の個数: 48

約数和(自身を含む): 365792256

約数和(自身を除く): 156411777

約数列:

[1, 3, 7, 11, 21, 31, 33, 49, 77, 93, 147, 217, 231, 341, 539, 651, 1023, 1519, 1617, 2387, 4177, 4557, 7161, 12531, 16709, 29239, 45947, 50127, 87717, 129487, 137841, 204673, 321629, 388461, 614019, 906409, 964887, 1424357, 2251403, 2719227, 4273071, 6344863, 6754209, 9970499, 19034589, 29911497, 69793493, 209380479]

約数ペア:

[(1, 209380479), (3, 69793493), (7, 29911497), (11, 19034589), (21, 9970499), (31, 6754209), (33, 6344863), (49, 4273071), (77, 2719227), (93, 2251403), (147, 1424357), (217, 964887), (231, 906409), (341, 614019), (539, 388461), (651, 321629), (1023, 204673), (1519, 137841), (1617, 129487), (2387, 87717), (4177, 50127), (4557, 45947), (7161, 29239), (12531, 16709)]