21313325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 31497984

約数和(自身を除く): 10184659

約数列:

[1, 5, 11, 17, 25, 47, 55, 85, 97, 187, 235, 275, 425, 485, 517, 799, 935, 1067, 1175, 1649, 2425, 2585, 3995, 4559, 4675, 5335, 8245, 8789, 12925, 18139, 19975, 22795, 26675, 41225, 43945, 50149, 77503, 90695, 113975, 219725, 250745, 387515, 453475, 852533, 1253725, 1937575, 4262665, 21313325]

約数ペア:

[(1, 21313325), (5, 4262665), (11, 1937575), (17, 1253725), (25, 852533), (47, 453475), (55, 387515), (85, 250745), (97, 219725), (187, 113975), (235, 90695), (275, 77503), (425, 50149), (485, 43945), (517, 41225), (799, 26675), (935, 22795), (1067, 19975), (1175, 18139), (1649, 12925), (2425, 8789), (2585, 8245), (3995, 5335), (4559, 4675)]