21212556

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{449}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 51609600

約数和(自身を除く): 30397044

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 127, 186, 254, 372, 381, 449, 508, 762, 898, 1347, 1524, 1796, 2694, 3937, 5388, 7874, 11811, 13919, 15748, 23622, 27838, 41757, 47244, 55676, 57023, 83514, 114046, 167028, 171069, 228092, 342138, 684276, 1767713, 3535426, 5303139, 7070852, 10606278, 21212556]

約数ペア:

[(1, 21212556), (2, 10606278), (3, 7070852), (4, 5303139), (6, 3535426), (12, 1767713), (31, 684276), (62, 342138), (93, 228092), (124, 171069), (127, 167028), (186, 114046), (254, 83514), (372, 57023), (381, 55676), (449, 47244), (508, 41757), (762, 27838), (898, 23622), (1347, 15748), (1524, 13919), (1796, 11811), (2694, 7874), (3937, 5388)]