21599820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10909}}^1$

素因数の和:10935

約数の個数: 72

約数和(自身を含む): 71482320

約数和(自身を除く): 49882500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10909, 21818, 32727, 43636, 54545, 65454, 98181, 109090, 119999, 130908, 163635, 196362, 218180, 239998, 327270, 359997, 392724, 479996, 490905, 599995, 654540, 719994, 981810, 1079991, 1199990, 1439988, 1799985, 1963620, 2159982, 2399980, 3599970, 4319964, 5399955, 7199940, 10799910, 21599820]

約数ペア:

[(1, 21599820), (2, 10799910), (3, 7199940), (4, 5399955), (5, 4319964), (6, 3599970), (9, 2399980), (10, 2159982), (11, 1963620), (12, 1799985), (15, 1439988), (18, 1199990), (20, 1079991), (22, 981810), (30, 719994), (33, 654540), (36, 599995), (44, 490905), (45, 479996), (55, 392724), (60, 359997), (66, 327270), (90, 239998), (99, 218180), (110, 196362), (132, 163635), (165, 130908), (180, 119999), (198, 109090), (220, 98181), (330, 65454), (396, 54545), (495, 43636), (660, 32727), (990, 21818), (1980, 10909)]