42666666

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{421}}^1$

素因数の和:579

約数の個数: 64

約数和(自身を含む): 103710720

約数和(自身を除く): 61044054

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 127, 133, 254, 266, 381, 399, 421, 762, 798, 842, 889, 1263, 1778, 2413, 2526, 2667, 2947, 4826, 5334, 5894, 7239, 7999, 8841, 14478, 15998, 16891, 17682, 23997, 33782, 47994, 50673, 53467, 55993, 101346, 106934, 111986, 160401, 167979, 320802, 335958, 374269, 748538, 1015873, 1122807, 2031746, 2245614, 3047619, 6095238, 7111111, 14222222, 21333333, 42666666]

約数ペア:

[(1, 42666666), (2, 21333333), (3, 14222222), (6, 7111111), (7, 6095238), (14, 3047619), (19, 2245614), (21, 2031746), (38, 1122807), (42, 1015873), (57, 748538), (114, 374269), (127, 335958), (133, 320802), (254, 167979), (266, 160401), (381, 111986), (399, 106934), (421, 101346), (762, 55993), (798, 53467), (842, 50673), (889, 47994), (1263, 33782), (1778, 23997), (2413, 17682), (2526, 16891), (2667, 15998), (2947, 14478), (4826, 8841), (5334, 7999), (5894, 7239)]