21253428

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{9371}}^1$

素因数の和:9394

約数の個数: 60

約数和(自身を含む): 63504672

約数和(自身を除く): 42251244

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 252, 324, 378, 567, 756, 1134, 2268, 9371, 18742, 28113, 37484, 56226, 65597, 84339, 112452, 131194, 168678, 196791, 253017, 262388, 337356, 393582, 506034, 590373, 759051, 787164, 1012068, 1180746, 1518102, 1771119, 2361492, 3036204, 3542238, 5313357, 7084476, 10626714, 21253428]

約数ペア:

[(1, 21253428), (2, 10626714), (3, 7084476), (4, 5313357), (6, 3542238), (7, 3036204), (9, 2361492), (12, 1771119), (14, 1518102), (18, 1180746), (21, 1012068), (27, 787164), (28, 759051), (36, 590373), (42, 506034), (54, 393582), (63, 337356), (81, 262388), (84, 253017), (108, 196791), (126, 168678), (162, 131194), (189, 112452), (252, 84339), (324, 65597), (378, 56226), (567, 37484), (756, 28113), (1134, 18742), (2268, 9371)]