21601800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1091}}^1$

素因数の和:1124

約数の個数: 144

約数和(自身を含む): 79213680

約数和(自身を除く): 57611880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 25, 30, 33, 36, 40, 44, 45, 50, 55, 60, 66, 72, 75, 88, 90, 99, 100, 110, 120, 132, 150, 165, 180, 198, 200, 220, 225, 264, 275, 300, 330, 360, 396, 440, 450, 495, 550, 600, 660, 792, 825, 900, 990, 1091, 1100, 1320, 1650, 1800, 1980, 2182, 2200, 2475, 3273, 3300, 3960, 4364, 4950, 5455, 6546, 6600, 8728, 9819, 9900, 10910, 12001, 13092, 16365, 19638, 19800, 21820, 24002, 26184, 27275, 32730, 36003, 39276, 43640, 48004, 49095, 54550, 60005, 65460, 72006, 78552, 81825, 96008, 98190, 108009, 109100, 120010, 130920, 144012, 163650, 180015, 196380, 216018, 218200, 240020, 245475, 288024, 300025, 327300, 360030, 392760, 432036, 480040, 490950, 540045, 600050, 654600, 720060, 864072, 900075, 981900, 1080090, 1200100, 1440120, 1800150, 1963800, 2160180, 2400200, 2700225, 3600300, 4320360, 5400450, 7200600, 10800900, 21601800]

約数ペア:

[(1, 21601800), (2, 10800900), (3, 7200600), (4, 5400450), (5, 4320360), (6, 3600300), (8, 2700225), (9, 2400200), (10, 2160180), (11, 1963800), (12, 1800150), (15, 1440120), (18, 1200100), (20, 1080090), (22, 981900), (24, 900075), (25, 864072), (30, 720060), (33, 654600), (36, 600050), (40, 540045), (44, 490950), (45, 480040), (50, 432036), (55, 392760), (60, 360030), (66, 327300), (72, 300025), (75, 288024), (88, 245475), (90, 240020), (99, 218200), (100, 216018), (110, 196380), (120, 180015), (132, 163650), (150, 144012), (165, 130920), (180, 120010), (198, 109100), (200, 108009), (220, 98190), (225, 96008), (264, 81825), (275, 78552), (300, 72006), (330, 65460), (360, 60005), (396, 54550), (440, 49095), (450, 48004), (495, 43640), (550, 39276), (600, 36003), (660, 32730), (792, 27275), (825, 26184), (900, 24002), (990, 21820), (1091, 19800), (1100, 19638), (1320, 16365), (1650, 13092), (1800, 12001), (1980, 10910), (2182, 9900), (2200, 9819), (2475, 8728), (3273, 6600), (3300, 6546), (3960, 5455), (4364, 4950)]