21519000

素因数分解:

$2^3\times 3^3\times 5^3\times {\mathrm{797}}^1$

素因数の和:827

約数の個数: 128

約数和(自身を含む): 74692800

約数和(自身を除く): 53173800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 27, 30, 36, 40, 45, 50, 54, 60, 72, 75, 90, 100, 108, 120, 125, 135, 150, 180, 200, 216, 225, 250, 270, 300, 360, 375, 450, 500, 540, 600, 675, 750, 797, 900, 1000, 1080, 1125, 1350, 1500, 1594, 1800, 2250, 2391, 2700, 3000, 3188, 3375, 3985, 4500, 4782, 5400, 6376, 6750, 7173, 7970, 9000, 9564, 11955, 13500, 14346, 15940, 19128, 19925, 21519, 23910, 27000, 28692, 31880, 35865, 39850, 43038, 47820, 57384, 59775, 71730, 79700, 86076, 95640, 99625, 107595, 119550, 143460, 159400, 172152, 179325, 199250, 215190, 239100, 286920, 298875, 358650, 398500, 430380, 478200, 537975, 597750, 717300, 797000, 860760, 896625, 1075950, 1195500, 1434600, 1793250, 2151900, 2391000, 2689875, 3586500, 4303800, 5379750, 7173000, 10759500, 21519000]

約数ペア:

[(1, 21519000), (2, 10759500), (3, 7173000), (4, 5379750), (5, 4303800), (6, 3586500), (8, 2689875), (9, 2391000), (10, 2151900), (12, 1793250), (15, 1434600), (18, 1195500), (20, 1075950), (24, 896625), (25, 860760), (27, 797000), (30, 717300), (36, 597750), (40, 537975), (45, 478200), (50, 430380), (54, 398500), (60, 358650), (72, 298875), (75, 286920), (90, 239100), (100, 215190), (108, 199250), (120, 179325), (125, 172152), (135, 159400), (150, 143460), (180, 119550), (200, 107595), (216, 99625), (225, 95640), (250, 86076), (270, 79700), (300, 71730), (360, 59775), (375, 57384), (450, 47820), (500, 43038), (540, 39850), (600, 35865), (675, 31880), (750, 28692), (797, 27000), (900, 23910), (1000, 21519), (1080, 19925), (1125, 19128), (1350, 15940), (1500, 14346), (1594, 13500), (1800, 11955), (2250, 9564), (2391, 9000), (2700, 7970), (3000, 7173), (3188, 6750), (3375, 6376), (3985, 5400), (4500, 4782)]