21397500

素因数分解:

$2^2\times 3^3\times 5^4\times {\mathrm{317}}^1$

素因数の和:350

約数の個数: 120

約数和(自身を含む): 69540240

約数和(自身を除く): 48142740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 90, 100, 108, 125, 135, 150, 180, 225, 250, 270, 300, 317, 375, 450, 500, 540, 625, 634, 675, 750, 900, 951, 1125, 1250, 1268, 1350, 1500, 1585, 1875, 1902, 2250, 2500, 2700, 2853, 3170, 3375, 3750, 3804, 4500, 4755, 5625, 5706, 6340, 6750, 7500, 7925, 8559, 9510, 11250, 11412, 13500, 14265, 15850, 16875, 17118, 19020, 22500, 23775, 28530, 31700, 33750, 34236, 39625, 42795, 47550, 57060, 67500, 71325, 79250, 85590, 95100, 118875, 142650, 158500, 171180, 198125, 213975, 237750, 285300, 356625, 396250, 427950, 475500, 594375, 713250, 792500, 855900, 1069875, 1188750, 1426500, 1783125, 2139750, 2377500, 3566250, 4279500, 5349375, 7132500, 10698750, 21397500]

約数ペア:

[(1, 21397500), (2, 10698750), (3, 7132500), (4, 5349375), (5, 4279500), (6, 3566250), (9, 2377500), (10, 2139750), (12, 1783125), (15, 1426500), (18, 1188750), (20, 1069875), (25, 855900), (27, 792500), (30, 713250), (36, 594375), (45, 475500), (50, 427950), (54, 396250), (60, 356625), (75, 285300), (90, 237750), (100, 213975), (108, 198125), (125, 171180), (135, 158500), (150, 142650), (180, 118875), (225, 95100), (250, 85590), (270, 79250), (300, 71325), (317, 67500), (375, 57060), (450, 47550), (500, 42795), (540, 39625), (625, 34236), (634, 33750), (675, 31700), (750, 28530), (900, 23775), (951, 22500), (1125, 19020), (1250, 17118), (1268, 16875), (1350, 15850), (1500, 14265), (1585, 13500), (1875, 11412), (1902, 11250), (2250, 9510), (2500, 8559), (2700, 7925), (2853, 7500), (3170, 6750), (3375, 6340), (3750, 5706), (3804, 5625), (4500, 4755)]