21000314592

素因数分解:

$2^5\times 3^2\times {\mathrm{251}}^1\times {\mathrm{290509}}^1$

素因数の和:290776

約数の個数: 72

約数和(自身を含む): 59957777880

約数和(自身を除く): 38957463288

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 251, 288, 502, 753, 1004, 1506, 2008, 2259, 3012, 4016, 4518, 6024, 8032, 9036, 12048, 18072, 24096, 36144, 72288, 290509, 581018, 871527, 1162036, 1743054, 2324072, 2614581, 3486108, 4648144, 5229162, 6972216, 9296288, 10458324, 13944432, 20916648, 27888864, 41833296, 72917759, 83666592, 145835518, 218753277, 291671036, 437506554, 583342072, 656259831, 875013108, 1166684144, 1312519662, 1750026216, 2333368288, 2625039324, 3500052432, 5250078648, 7000104864, 10500157296, 21000314592]

約数ペア:

[(1, 21000314592), (2, 10500157296), (3, 7000104864), (4, 5250078648), (6, 3500052432), (8, 2625039324), (9, 2333368288), (12, 1750026216), (16, 1312519662), (18, 1166684144), (24, 875013108), (32, 656259831), (36, 583342072), (48, 437506554), (72, 291671036), (96, 218753277), (144, 145835518), (251, 83666592), (288, 72917759), (502, 41833296), (753, 27888864), (1004, 20916648), (1506, 13944432), (2008, 10458324), (2259, 9296288), (3012, 6972216), (4016, 5229162), (4518, 4648144), (6024, 3486108), (8032, 2614581), (9036, 2324072), (12048, 1743054), (18072, 1162036), (24096, 871527), (36144, 581018), (72288, 290509)]