21216800

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2411}}^1$

素因数の和:2442

約数の個数: 72

約数和(自身を含む): 56527632

約数和(自身を除く): 35310832

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 110, 160, 176, 200, 220, 275, 352, 400, 440, 550, 800, 880, 1100, 1760, 2200, 2411, 4400, 4822, 8800, 9644, 12055, 19288, 24110, 26521, 38576, 48220, 53042, 60275, 77152, 96440, 106084, 120550, 132605, 192880, 212168, 241100, 265210, 385760, 424336, 482200, 530420, 663025, 848672, 964400, 1060840, 1326050, 1928800, 2121680, 2652100, 4243360, 5304200, 10608400, 21216800]

約数ペア:

[(1, 21216800), (2, 10608400), (4, 5304200), (5, 4243360), (8, 2652100), (10, 2121680), (11, 1928800), (16, 1326050), (20, 1060840), (22, 964400), (25, 848672), (32, 663025), (40, 530420), (44, 482200), (50, 424336), (55, 385760), (80, 265210), (88, 241100), (100, 212168), (110, 192880), (160, 132605), (176, 120550), (200, 106084), (220, 96440), (275, 77152), (352, 60275), (400, 53042), (440, 48220), (550, 38576), (800, 26521), (880, 24110), (1100, 19288), (1760, 12055), (2200, 9644), (2411, 8800), (4400, 4822)]