21040800

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{797}}^1$

素因数の和:831

約数の個数: 144

約数和(自身を含む): 74807712

約数和(自身を除く): 53766912

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 25, 30, 32, 33, 40, 44, 48, 50, 55, 60, 66, 75, 80, 88, 96, 100, 110, 120, 132, 150, 160, 165, 176, 200, 220, 240, 264, 275, 300, 330, 352, 400, 440, 480, 528, 550, 600, 660, 797, 800, 825, 880, 1056, 1100, 1200, 1320, 1594, 1650, 1760, 2200, 2391, 2400, 2640, 3188, 3300, 3985, 4400, 4782, 5280, 6376, 6600, 7970, 8767, 8800, 9564, 11955, 12752, 13200, 15940, 17534, 19128, 19925, 23910, 25504, 26301, 26400, 31880, 35068, 38256, 39850, 43835, 47820, 52602, 59775, 63760, 70136, 76512, 79700, 87670, 95640, 105204, 119550, 127520, 131505, 140272, 159400, 175340, 191280, 210408, 219175, 239100, 263010, 280544, 318800, 350680, 382560, 420816, 438350, 478200, 526020, 637600, 657525, 701360, 841632, 876700, 956400, 1052040, 1315050, 1402720, 1753400, 1912800, 2104080, 2630100, 3506800, 4208160, 5260200, 7013600, 10520400, 21040800]

約数ペア:

[(1, 21040800), (2, 10520400), (3, 7013600), (4, 5260200), (5, 4208160), (6, 3506800), (8, 2630100), (10, 2104080), (11, 1912800), (12, 1753400), (15, 1402720), (16, 1315050), (20, 1052040), (22, 956400), (24, 876700), (25, 841632), (30, 701360), (32, 657525), (33, 637600), (40, 526020), (44, 478200), (48, 438350), (50, 420816), (55, 382560), (60, 350680), (66, 318800), (75, 280544), (80, 263010), (88, 239100), (96, 219175), (100, 210408), (110, 191280), (120, 175340), (132, 159400), (150, 140272), (160, 131505), (165, 127520), (176, 119550), (200, 105204), (220, 95640), (240, 87670), (264, 79700), (275, 76512), (300, 70136), (330, 63760), (352, 59775), (400, 52602), (440, 47820), (480, 43835), (528, 39850), (550, 38256), (600, 35068), (660, 31880), (797, 26400), (800, 26301), (825, 25504), (880, 23910), (1056, 19925), (1100, 19128), (1200, 17534), (1320, 15940), (1594, 13200), (1650, 12752), (1760, 11955), (2200, 9564), (2391, 8800), (2400, 8767), (2640, 7970), (3188, 6600), (3300, 6376), (3985, 5280), (4400, 4782)]