21939000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:198

約数の個数: 128

約数和(自身を含む): 70087680

約数和(自身を除く): 48148680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 71, 75, 100, 103, 120, 125, 142, 150, 200, 206, 213, 250, 284, 300, 309, 355, 375, 412, 426, 500, 515, 568, 600, 618, 710, 750, 824, 852, 1000, 1030, 1065, 1236, 1420, 1500, 1545, 1704, 1775, 2060, 2130, 2472, 2575, 2840, 3000, 3090, 3550, 4120, 4260, 5150, 5325, 6180, 7100, 7313, 7725, 8520, 8875, 10300, 10650, 12360, 12875, 14200, 14626, 15450, 17750, 20600, 21300, 21939, 25750, 26625, 29252, 30900, 35500, 36565, 38625, 42600, 43878, 51500, 53250, 58504, 61800, 71000, 73130, 77250, 87756, 103000, 106500, 109695, 146260, 154500, 175512, 182825, 213000, 219390, 292520, 309000, 365650, 438780, 548475, 731300, 877560, 914125, 1096950, 1462600, 1828250, 2193900, 2742375, 3656500, 4387800, 5484750, 7313000, 10969500, 21939000]

約数ペア:

[(1, 21939000), (2, 10969500), (3, 7313000), (4, 5484750), (5, 4387800), (6, 3656500), (8, 2742375), (10, 2193900), (12, 1828250), (15, 1462600), (20, 1096950), (24, 914125), (25, 877560), (30, 731300), (40, 548475), (50, 438780), (60, 365650), (71, 309000), (75, 292520), (100, 219390), (103, 213000), (120, 182825), (125, 175512), (142, 154500), (150, 146260), (200, 109695), (206, 106500), (213, 103000), (250, 87756), (284, 77250), (300, 73130), (309, 71000), (355, 61800), (375, 58504), (412, 53250), (426, 51500), (500, 43878), (515, 42600), (568, 38625), (600, 36565), (618, 35500), (710, 30900), (750, 29252), (824, 26625), (852, 25750), (1000, 21939), (1030, 21300), (1065, 20600), (1236, 17750), (1420, 15450), (1500, 14626), (1545, 14200), (1704, 12875), (1775, 12360), (2060, 10650), (2130, 10300), (2472, 8875), (2575, 8520), (2840, 7725), (3000, 7313), (3090, 7100), (3550, 6180), (4120, 5325), (4260, 5150)]