21023856

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{20857}}^1$

素因数の和:20878

約数の個数: 60

約数和(自身を含む): 67246192

約数和(自身を除く): 46222336

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, 20857, 41714, 62571, 83428, 125142, 145999, 166856, 187713, 250284, 291998, 333712, 375426, 437997, 500568, 583996, 750852, 875994, 1001136, 1167992, 1313991, 1501704, 1751988, 2335984, 2627982, 3003408, 3503976, 5255964, 7007952, 10511928, 21023856]

約数ペア:

[(1, 21023856), (2, 10511928), (3, 7007952), (4, 5255964), (6, 3503976), (7, 3003408), (8, 2627982), (9, 2335984), (12, 1751988), (14, 1501704), (16, 1313991), (18, 1167992), (21, 1001136), (24, 875994), (28, 750852), (36, 583996), (42, 500568), (48, 437997), (56, 375426), (63, 333712), (72, 291998), (84, 250284), (112, 187713), (126, 166856), (144, 145999), (168, 125142), (252, 83428), (336, 62571), (504, 41714), (1008, 20857)]