643986

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 1684800

約数和(自身を除く): 1040814

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 114, 126, 133, 171, 266, 269, 342, 399, 538, 798, 807, 1197, 1614, 1883, 2394, 2421, 3766, 4842, 5111, 5649, 10222, 11298, 15333, 16947, 30666, 33894, 35777, 45999, 71554, 91998, 107331, 214662, 321993, 643986]

約数ペア:

[(1, 643986), (2, 321993), (3, 214662), (6, 107331), (7, 91998), (9, 71554), (14, 45999), (18, 35777), (19, 33894), (21, 30666), (38, 16947), (42, 15333), (57, 11298), (63, 10222), (114, 5649), (126, 5111), (133, 4842), (171, 3766), (266, 2421), (269, 2394), (342, 1883), (399, 1614), (538, 1197), (798, 807)]