19886996

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 39567360

約数和(自身を除く): 19680364

約数列:

[1, 2, 4, 19, 23, 31, 38, 46, 62, 76, 92, 124, 367, 437, 589, 713, 734, 874, 1178, 1426, 1468, 1748, 2356, 2852, 6973, 8441, 11377, 13547, 13946, 16882, 22754, 27094, 27892, 33764, 45508, 54188, 160379, 216163, 261671, 320758, 432326, 523342, 641516, 864652, 1046684, 4971749, 9943498, 19886996]

約数ペア:

[(1, 19886996), (2, 9943498), (4, 4971749), (19, 1046684), (23, 864652), (31, 641516), (38, 523342), (46, 432326), (62, 320758), (76, 261671), (92, 216163), (124, 160379), (367, 54188), (437, 45508), (589, 33764), (713, 27892), (734, 27094), (874, 22754), (1178, 16882), (1426, 13946), (1468, 13547), (1748, 11377), (2356, 8441), (2852, 6973)]