21007800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1061}}^1$

素因数の和:1094

約数の個数: 144

約数和(自身を含む): 77037480

約数和(自身を除く): 56029680

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, 1061, 1100, 1320, 1650, 1800, 1980, 2122, 2200, 2475, 3183, 3300, 3960, 4244, 4950, 5305, 6366, 6600, 8488, 9549, 9900, 10610, 11671, 12732, 15915, 19098, 19800, 21220, 23342, 25464, 26525, 31830, 35013, 38196, 42440, 46684, 47745, 53050, 58355, 63660, 70026, 76392, 79575, 93368, 95490, 105039, 106100, 116710, 127320, 140052, 159150, 175065, 190980, 210078, 212200, 233420, 238725, 280104, 291775, 318300, 350130, 381960, 420156, 466840, 477450, 525195, 583550, 636600, 700260, 840312, 875325, 954900, 1050390, 1167100, 1400520, 1750650, 1909800, 2100780, 2334200, 2625975, 3501300, 4201560, 5251950, 7002600, 10503900, 21007800]

約数ペア:

[(1, 21007800), (2, 10503900), (3, 7002600), (4, 5251950), (5, 4201560), (6, 3501300), (8, 2625975), (9, 2334200), (10, 2100780), (11, 1909800), (12, 1750650), (15, 1400520), (18, 1167100), (20, 1050390), (22, 954900), (24, 875325), (25, 840312), (30, 700260), (33, 636600), (36, 583550), (40, 525195), (44, 477450), (45, 466840), (50, 420156), (55, 381960), (60, 350130), (66, 318300), (72, 291775), (75, 280104), (88, 238725), (90, 233420), (99, 212200), (100, 210078), (110, 190980), (120, 175065), (132, 159150), (150, 140052), (165, 127320), (180, 116710), (198, 106100), (200, 105039), (220, 95490), (225, 93368), (264, 79575), (275, 76392), (300, 70026), (330, 63660), (360, 58355), (396, 53050), (440, 47745), (450, 46684), (495, 42440), (550, 38196), (600, 35013), (660, 31830), (792, 26525), (825, 25464), (900, 23342), (990, 21220), (1061, 19800), (1100, 19098), (1320, 15915), (1650, 12732), (1800, 11671), (1980, 10610), (2122, 9900), (2200, 9549), (2475, 8488), (3183, 6600), (3300, 6366), (3960, 5305), (4244, 4950)]