21917602

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:263

約数の個数: 48

約数和(自身を含む): 41040000

約数和(自身を除く): 19122398

約数列:

[1, 2, 7, 14, 19, 38, 49, 79, 98, 133, 149, 158, 266, 298, 553, 931, 1043, 1106, 1501, 1862, 2086, 2831, 3002, 3871, 5662, 7301, 7742, 10507, 11771, 14602, 19817, 21014, 23542, 39634, 73549, 82397, 138719, 147098, 164794, 223649, 277438, 447298, 576779, 1153558, 1565543, 3131086, 10958801, 21917602]

約数ペア:

[(1, 21917602), (2, 10958801), (7, 3131086), (14, 1565543), (19, 1153558), (38, 576779), (49, 447298), (79, 277438), (98, 223649), (133, 164794), (149, 147098), (158, 138719), (266, 82397), (298, 73549), (553, 39634), (931, 23542), (1043, 21014), (1106, 19817), (1501, 14602), (1862, 11771), (2086, 10507), (2831, 7742), (3002, 7301), (3871, 5662)]