21687094

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{307}}^1$

素因数の和:365

約数の個数: 48

約数和(自身を含む): 40582080

約数和(自身を除く): 18894986

約数列:

[1, 2, 11, 13, 19, 22, 26, 38, 143, 169, 209, 247, 286, 307, 338, 418, 494, 614, 1859, 2717, 3211, 3377, 3718, 3991, 5434, 5833, 6422, 6754, 7982, 11666, 35321, 43901, 51883, 64163, 70642, 75829, 87802, 103766, 128326, 151658, 570713, 834119, 985777, 1141426, 1668238, 1971554, 10843547, 21687094]

約数ペア:

[(1, 21687094), (2, 10843547), (11, 1971554), (13, 1668238), (19, 1141426), (22, 985777), (26, 834119), (38, 570713), (143, 151658), (169, 128326), (209, 103766), (247, 87802), (286, 75829), (307, 70642), (338, 64163), (418, 51883), (494, 43901), (614, 35321), (1859, 11666), (2717, 7982), (3211, 6754), (3377, 6422), (3718, 5833), (3991, 5434)]