19857978

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{911}}^1$

素因数の和:1099

約数の個数: 48

約数和(自身を含む): 49510656

約数和(自身を除く): 29652678

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 173, 346, 519, 911, 1038, 1211, 1557, 1822, 2422, 2733, 3114, 3633, 5466, 6377, 7266, 8199, 10899, 12754, 16398, 19131, 21798, 38262, 57393, 114786, 157603, 315206, 472809, 945618, 1103221, 1418427, 2206442, 2836854, 3309663, 6619326, 9928989, 19857978]

約数ペア:

[(1, 19857978), (2, 9928989), (3, 6619326), (6, 3309663), (7, 2836854), (9, 2206442), (14, 1418427), (18, 1103221), (21, 945618), (42, 472809), (63, 315206), (126, 157603), (173, 114786), (346, 57393), (519, 38262), (911, 21798), (1038, 19131), (1211, 16398), (1557, 12754), (1822, 10899), (2422, 8199), (2733, 7266), (3114, 6377), (3633, 5466)]