21961100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:387

約数の個数: 72

約数和(自身を含む): 55100640

約数和(自身を除く): 33139540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 137, 140, 175, 229, 274, 350, 458, 548, 685, 700, 916, 959, 1145, 1370, 1603, 1918, 2290, 2740, 3206, 3425, 3836, 4580, 4795, 5725, 6412, 6850, 8015, 9590, 11450, 13700, 16030, 19180, 22900, 23975, 31373, 32060, 40075, 47950, 62746, 80150, 95900, 125492, 156865, 160300, 219611, 313730, 439222, 627460, 784325, 878444, 1098055, 1568650, 2196110, 3137300, 4392220, 5490275, 10980550, 21961100]

約数ペア:

[(1, 21961100), (2, 10980550), (4, 5490275), (5, 4392220), (7, 3137300), (10, 2196110), (14, 1568650), (20, 1098055), (25, 878444), (28, 784325), (35, 627460), (50, 439222), (70, 313730), (100, 219611), (137, 160300), (140, 156865), (175, 125492), (229, 95900), (274, 80150), (350, 62746), (458, 47950), (548, 40075), (685, 32060), (700, 31373), (916, 23975), (959, 22900), (1145, 19180), (1370, 16030), (1603, 13700), (1918, 11450), (2290, 9590), (2740, 8015), (3206, 6850), (3425, 6412), (3836, 5725), (4580, 4795)]