21001500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{359}}^1$

素因数の和:397

約数の個数: 144

約数和(自身を含む): 71547840

約数和(自身を除く): 50546340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 30, 36, 39, 45, 50, 52, 60, 65, 75, 78, 90, 100, 117, 125, 130, 150, 156, 180, 195, 225, 234, 250, 260, 300, 325, 359, 375, 390, 450, 468, 500, 585, 650, 718, 750, 780, 900, 975, 1077, 1125, 1170, 1300, 1436, 1500, 1625, 1795, 1950, 2154, 2250, 2340, 2925, 3231, 3250, 3590, 3900, 4308, 4500, 4667, 4875, 5385, 5850, 6462, 6500, 7180, 8975, 9334, 9750, 10770, 11700, 12924, 14001, 14625, 16155, 17950, 18668, 19500, 21540, 23335, 26925, 28002, 29250, 32310, 35900, 42003, 44875, 46670, 53850, 56004, 58500, 64620, 70005, 80775, 84006, 89750, 93340, 107700, 116675, 134625, 140010, 161550, 168012, 179500, 210015, 233350, 269250, 280020, 323100, 350025, 403875, 420030, 466700, 538500, 583375, 700050, 807750, 840060, 1050075, 1166750, 1400100, 1615500, 1750125, 2100150, 2333500, 3500250, 4200300, 5250375, 7000500, 10500750, 21001500]

約数ペア:

[(1, 21001500), (2, 10500750), (3, 7000500), (4, 5250375), (5, 4200300), (6, 3500250), (9, 2333500), (10, 2100150), (12, 1750125), (13, 1615500), (15, 1400100), (18, 1166750), (20, 1050075), (25, 840060), (26, 807750), (30, 700050), (36, 583375), (39, 538500), (45, 466700), (50, 420030), (52, 403875), (60, 350025), (65, 323100), (75, 280020), (78, 269250), (90, 233350), (100, 210015), (117, 179500), (125, 168012), (130, 161550), (150, 140010), (156, 134625), (180, 116675), (195, 107700), (225, 93340), (234, 89750), (250, 84006), (260, 80775), (300, 70005), (325, 64620), (359, 58500), (375, 56004), (390, 53850), (450, 46670), (468, 44875), (500, 42003), (585, 35900), (650, 32310), (718, 29250), (750, 28002), (780, 26925), (900, 23335), (975, 21540), (1077, 19500), (1125, 18668), (1170, 17950), (1300, 16155), (1436, 14625), (1500, 14001), (1625, 12924), (1795, 11700), (1950, 10770), (2154, 9750), (2250, 9334), (2340, 8975), (2925, 7180), (3231, 6500), (3250, 6462), (3590, 5850), (3900, 5385), (4308, 4875), (4500, 4667)]