19964392

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1$

素因数の和:410

約数の個数: 64

約数和(自身を含む): 46120320

約数和(自身を除く): 26155928

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 67, 68, 119, 134, 136, 238, 268, 313, 469, 476, 536, 626, 938, 952, 1139, 1252, 1876, 2191, 2278, 2504, 3752, 4382, 4556, 5321, 7973, 8764, 9112, 10642, 15946, 17528, 20971, 21284, 31892, 37247, 41942, 42568, 63784, 74494, 83884, 146797, 148988, 167768, 293594, 297976, 356507, 587188, 713014, 1174376, 1426028, 2495549, 2852056, 4991098, 9982196, 19964392]

約数ペア:

[(1, 19964392), (2, 9982196), (4, 4991098), (7, 2852056), (8, 2495549), (14, 1426028), (17, 1174376), (28, 713014), (34, 587188), (56, 356507), (67, 297976), (68, 293594), (119, 167768), (134, 148988), (136, 146797), (238, 83884), (268, 74494), (313, 63784), (469, 42568), (476, 41942), (536, 37247), (626, 31892), (938, 21284), (952, 20971), (1139, 17528), (1252, 15946), (1876, 10642), (2191, 9112), (2278, 8764), (2504, 7973), (3752, 5321), (4382, 4556)]