21275856

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{21107}}^1$

素因数の和:21128

約数の個数: 60

約数和(自身を含む): 68052192

約数和(自身を除く): 46776336

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008, 21107, 42214, 63321, 84428, 126642, 147749, 168856, 189963, 253284, 295498, 337712, 379926, 443247, 506568, 590996, 759852, 886494, 1013136, 1181992, 1329741, 1519704, 1772988, 2363984, 2659482, 3039408, 3545976, 5318964, 7091952, 10637928, 21275856]

約数ペア:

[(1, 21275856), (2, 10637928), (3, 7091952), (4, 5318964), (6, 3545976), (7, 3039408), (8, 2659482), (9, 2363984), (12, 1772988), (14, 1519704), (16, 1329741), (18, 1181992), (21, 1013136), (24, 886494), (28, 759852), (36, 590996), (42, 506568), (48, 443247), (56, 379926), (63, 337712), (72, 295498), (84, 253284), (112, 189963), (126, 168856), (144, 147749), (168, 126642), (252, 84428), (336, 63321), (504, 42214), (1008, 21107)]